CodeStore Recruitment Process, Interview Questions & Answers

CodeStore’s hiring involves a technical evaluation through coding challenges or project reviews, plus interviews that probe problem-solving abilities and familiarity with development best practices.
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About CodeStore

Company Description

CodeStore is a dynamic technology company specializing in custom software development, cloud services, and data engineering. With a focus on delivering innovative solutions, CodeStore caters to diverse industries, including healthcare, education, logistics, and e-commerce. The company is committed to fostering a collaborative environment that encourages creativity and continuous learning.

Work Culture & Job Environment

At CodeStore, the work culture is characterized by a friendly atmosphere, team spirit, and open communication. Employees are encouraged to share ideas and suggestions freely, fostering a sense of belonging and mutual respect. The company emphasizes self-development and supports employees in setting and achieving personal and professional goals. Regular team events and activities are organized to build camaraderie and promote a healthy work-life balance.

Interview Questions & Answers

Software Developer

Q1: What programming languages are you proficient in?

I am proficient in Java, Python, and JavaScript, with experience in developing scalable applications using these languages.

Q2: Can you explain the concept of Object-Oriented Programming?

Object-Oriented Programming (OOP) is a programming paradigm based on the concept of "objects," which can contain data and methods. It emphasizes principles like encapsulation, inheritance, and polymorphism to promote code reusability and modularity.

Q3: How do you approach debugging in your code?

I begin by reproducing the issue, analyzing error logs, and using debugging tools to step through the code. I also review recent changes and consult documentation to identify potential causes.

Q4: What is your experience with database management systems?

I have experience working with relational databases like MySQL and PostgreSQL, including designing schemas, writing complex queries, and optimizing performance.

Q5: How do you ensure code quality and maintainability?

I adhere to coding standards, write unit and integration tests, conduct code reviews, and use version control systems to maintain code quality and facilitate collaboration.

AI Engineer

Q1: What is your experience with machine learning frameworks?

I have hands-on experience with frameworks like TensorFlow and PyTorch, having used them to develop and deploy machine learning models for various applications.

Q2: Can you explain the difference between supervised and unsupervised learning?

Supervised learning involves training a model on labeled data to make predictions, while unsupervised learning involves finding hidden patterns in unlabeled data.

Q3: How do you handle overfitting in a machine learning model?

I use techniques like cross-validation, regularization, and pruning to prevent overfitting and ensure the model generalizes well to new data.

Q4: What is your experience with natural language processing (NLP)?

I have worked on NLP tasks such as sentiment analysis and text classification using libraries like NLTK and spaCy.

Q5: How do you evaluate the performance of a machine learning model?

I use metrics like accuracy, precision, recall, and F1-score, depending on the specific task and the nature of the data.

Data Analyst

Q1: What data visualization tools are you familiar with?

I am proficient in using tools like Tableau and Power BI to create interactive dashboards and reports that help stakeholders make data-driven decisions.

Q2: How do you handle missing or inconsistent data?

I use techniques like imputation, data cleaning, and transformation to handle missing or inconsistent data, ensuring the integrity of the analysis.

Q3: Can you explain the concept of data normalization?

Data normalization involves scaling numerical data to a standard range, improving the performance and accuracy of machine learning models.

Q4: What is your experience with SQL?

I have extensive experience writing complex SQL queries to extract, manipulate, and analyze data from relational databases.

Q5: How do you ensure the accuracy and reliability of your analyses?

I validate data sources, perform exploratory data analysis, and use statistical methods to ensure the accuracy and reliability of my analyses.

Project Manager

Q1: How do you initiate a new project?

I begin by defining the project scope, objectives, deliverables, and timelines. I then assemble a project team, allocate resources, and develop a detailed project plan.

Q2: How do you manage project risks?

I identify potential risks during the planning phase, assess their impact, and develop mitigation strategies. I continuously monitor risks throughout the project lifecycle and adjust plans as necessary.

Q3: How do you ensure effective communication within the project team?

I establish regular communication channels, such as weekly meetings and project management tools, to keep the team informed and aligned.

Q4: How do you handle changes in project scope?

I evaluate the impact of scope changes on timelines and resources, obtain stakeholder approval, and update the project plan to reflect the changes.

Q5: How do you measure project success?

I measure success based on the achievement of project objectives, adherence to timelines and budgets, stakeholder satisfaction, and the quality of deliverables.

Quality Assurance Engineer

Q1: What is the difference between functional and non-functional testing?

Functional testing verifies that the software performs its intended functions correctly, while non-functional testing assesses aspects like performance, usability, and security.

Q2: How do you design test cases?

I review requirements and specifications, identify test scenarios, and create detailed test cases with clear steps, expected results, and pass/fail criteria.

Q3: What is regression testing?

Regression testing involves retesting previously tested functionalities to ensure that new code changes have not introduced defects.

Q4: How do you handle defects found during testing?

I document defects with detailed information, prioritize them based on severity, and work with the development team to facilitate timely resolution.

Q5: How do you ensure comprehensive test coverage?

I use techniques like boundary value analysis, equivalence partitioning, and traceability matrices to ensure all aspects of the application are tested.

Technical Support Engineer

Q1: How do you handle a situation where a customer is frustrated with a technical issue?

I listen actively to understand their concerns, empathize with their situation, and assure them that I will work towards a resolution. I then troubleshoot the issue methodically and keep the customer informed throughout the process.

Q2: What tools do you use for remote troubleshooting?

I utilize remote desktop applications like TeamViewer and AnyDesk, along with diagnostic tools such as ping tests, tracert, and system logs to identify and resolve issues.

Q3: How do you prioritize multiple support tickets?

I assess the severity and impact of each issue, prioritize critical problems affecting business operations, and address less urgent issues accordingly.

Q4: Can you describe a challenging technical issue you resolved?

I once resolved a network connectivity issue caused by a misconfigured firewall. After thorough analysis and collaboration with the network team, we identified and corrected the configuration, restoring connectivity.

Q5: How do you stay updated with the latest technology trends?

I regularly read industry blogs, participate in online forums, attend webinars, and pursue relevant certifications to stay informed about emerging technologies.

Business Analyst

Q1: How do you gather requirements from stakeholders?

I conduct interviews, surveys, and workshops with stakeholders to understand their needs and document detailed requirements.

Q2: How do you analyze and document business processes?

I use techniques like process mapping and flowcharting to visualize business processes and identify areas for improvement.

Q3: How do you ensure that solutions align with business objectives?

I collaborate closely with stakeholders to ensure that proposed solutions address their needs and align with the organization's strategic goals.

Q4: How do you handle conflicting requirements from different stakeholders?

I facilitate discussions to understand the underlying needs of each stakeholder and work towards finding a balanced solution that satisfies all parties.

Q5: How do you measure the success of implemented solutions?

I define key performance indicators (KPIs) and monitor them to assess the effectiveness of implemented solutions.

DevOps Engineer

Q1: What is your experience with continuous integration and continuous deployment (CI/CD)?

I have experience setting up and maintaining CI/CD pipelines using tools like Jenkins and GitLab CI to automate the build, test, and deployment processes.

Q2: How do you manage infrastructure as code?

I use tools like Terraform and Ansible to define and manage infrastructure through code, ensuring consistency and scalability.

Q3: How do you monitor and maintain system performance?

I use monitoring tools like Prometheus and Grafana to track system performance and implement proactive measures to address potential issues.

Q4: How do you handle system failures or outages?

I follow established incident response protocols, perform root cause analysis, and implement corrective actions to prevent recurrence.

Q5: How do you collaborate with development and operations teams?

I facilitate communication between development and operations teams to ensure seamless integration and delivery of software applications.

System Administrator

Q1: What is your experience with server management?

I have experience managing both Windows and Linux servers, including installation, configuration, and maintenance.

Q2: How do you handle user access and permissions?

I implement role-based access controls and regularly review user permissions to ensure appropriate access levels.

Q3: How do you ensure system security?

I apply security patches, configure firewalls, and conduct regular security audits to protect systems from vulnerabilities.

Q4: How do you back up and restore data?

I implement automated backup solutions and regularly test restore procedures to ensure data integrity and availability.

Q5: How do you troubleshoot hardware and software issues?

I perform diagnostic tests, analyze logs, and collaborate with vendors to resolve hardware and software issues promptly.

Job Roles:

Software Developer

AI Engineer

Data Analyst

Project Manager

Quality Assurance Engineer

Technical Support Engineer

Business Analyst

DevOps Engineer

System Administrator

Skills (for reference):

CodeStore Interview Guide

Company Background and Industry Position

CodeStore, an emerging player in the software development landscape, has quietly built a reputation for delivering robust, scalable solutions tailored to diverse business needs. Founded just over a decade ago, they've steadily expanded into various sectors such as fintech, healthcare, and e-commerce. Unlike tech giants with flashy brand names, CodeStore thrives on agility and a tight-knit culture that prizes both innovation and reliability.

In an industry saturated with startups and established firms, CodeStore's niche lies in bridging complex backend engineering with user-centric design. Their products often require a blend of high-performance computing and intuitive interfaces, attracting candidates drawn to challenges that are as technically demanding as they are creatively engaging. Understanding their position is crucial when approaching the interview process—it shapes what they look for and how they evaluate fit.

How the Hiring Process Works

  1. Application Submission: Candidates begin by submitting their resumes and cover letters through the official website or trusted job portals. CodeStore values clarity and specificity here; generic applications often get filtered out early. Tailoring your resume to highlight relevant projects or skills makes a significant difference.
  2. Resume Screening: The talent acquisition team conducts an initial review, focusing on technical stack alignment and role relevance. This step weeds out mismatches quickly, keeping the pipeline efficient for both sides.
  3. Technical Assessment: For most positions, especially engineering roles, a coding task or technical quiz is administered. This is not just about solving problems but also demonstrating clean coding practices and logical thinking.
  4. Technical Interview Rounds: Selected candidates move forward to one or more rounds of live interviews with senior developers or team leads. These conversations go beyond algorithms—they assess problem-solving approach, system design insights, and domain knowledge.
  5. HR Interview: The final stage is more conversational, exploring cultural fit, candidate motivation, and salary expectations. It’s also a chance for candidates to ask questions and gauge if CodeStore’s environment aligns with their career aspirations.
  6. Offer and Negotiation: Successful candidates receive an offer package, which often includes a base salary, performance bonuses, and benefits. Negotiations are handled with transparency, reflecting CodeStore’s commitment to fair compensation.

While this structure might resemble many tech companies’ pipelines, the subtle emphasis CodeStore places on cultural and technical alignment ensures they hire candidates who thrive long term.

Interview Stages Explained

Technical Assessment

This is not your typical multiple-choice test. CodeStore’s technical assessment usually involves practical coding challenges that mimic real-world problems their teams face. They purposefully design these tasks to evaluate not just your ability to write code but also how you approach problems under constraints like performance and maintainability.

Expect language-specific questions—most often in Python, Java, or JavaScript—depending on the role. The assessment also includes logic puzzles and occasionally data structure problems that test your algorithmic thinking. Candidates often notice that the test is timed but not rushed, encouraging thoughtful solutions over quick hacks.

Technical Interview

Once you clear the initial hurdle, you’ll engage in deeper technical conversations. Interviewers will probe your understanding of core concepts such as object-oriented programming, RESTful APIs, databases, and cloud services. They want to see if you can articulate trade-offs and design scalable systems, which is critical given CodeStore’s client projects.

Behavioral technical questions arise too—like how you handled a challenging bug or optimized a slow application. These are windows into your real-world experience, not just textbook knowledge. Interviewers appreciate candidates who show curiosity and willingness to learn, so don’t hesitate to discuss ongoing education or side projects.

HR Interview

Typically the last step, the HR interview feels more like a conversation than a grilling session. Here, cultural fit is under the microscope. CodeStore puts a premium on teamwork, integrity, and adaptability. The HR team explores your motivations, work ethics, and how you manage stress or disagreements. They want to ensure you’re someone who will gel well with their close-knit teams.

Salary discussions happen here too. It’s wise to come prepared with realistic expectations based on market research, but also be open to understanding their total rewards package. The HR round is your opportunity to ask about career growth paths, training programs, and company values to make a well-rounded decision.

Examples of Questions Candidates Report

  • Technical: "Design a URL shortener system considering scalability and data consistency."
  • Algorithmic: "Given a sorted array and a target sum, find two numbers that add up to the target."
  • Coding Problem: "Implement a function to validate balanced parentheses in a string."
  • System Design: "Explain how you would architect a real-time chat application."
  • Behavioral: "Describe a situation where you had to resolve conflict within your team."
  • HR: "What motivates you to work at CodeStore rather than a larger tech company?"

Eligibility Expectations

CodeStore has a somewhat flexible eligibility criterion but does expect candidates to meet core technical skills aligned to the job role. For software engineer roles, a minimum of a bachelor’s degree in computer science or related field is standard, although exceptional self-taught developers with relevant portfolios occasionally get traction.

Experience requirements vary—junior roles ask for 1-3 years, mid-level roles 3-6, and senior positions require demonstrable leadership in projects and mentoring. The company values continuous learning, so candidates who show certifications or active contributions to open source projects gain a competitive edge.

Soft skills such as communication, teamwork, and problem-solving are non-negotiable. As CodeStore’s projects often involve cross-department collaboration, being able to articulate technical concepts to non-technical stakeholders is highly regarded.

Common Job Roles and Departments

Though CodeStore’s portfolio spans various sectors, their hiring heavily leans towards these departments:

  • Software Development: Backend engineers, frontend developers, full-stack developers, and mobile app developers. These roles focus on building and maintaining codebases that power client applications.
  • Quality Assurance: Manual and automation testers who ensure product reliability through rigorous testing strategies.
  • DevOps and Cloud Engineering: Specialists managing infrastructure, CI/CD pipelines, and cloud deployments to maintain high availability and performance.
  • Product Management and UX/UI Design: Professionals who drive feature planning, user experience research, and interface design.
  • Technical Support and Client Success: Teams that liaise with customers post-deployment, troubleshoot issues, and collect feedback.

Each role demands a mix of technical expertise and an ability to adapt to evolving project requirements—a hallmark of CodeStore’s agile philosophy.

Compensation and Salary Perspective

RoleEstimated Salary (Annual)
Junior Software Engineer$50,000 - $70,000
Mid-level Software Engineer$75,000 - $95,000
Senior Software Engineer$100,000 - $130,000
QA Engineer$45,000 - $75,000
DevOps Engineer$90,000 - $120,000
Product Manager$85,000 - $115,000

Compared to industry standards, CodeStore offers competitive packages that may not hit the top bracket of Silicon Valley giants but balance well with the cost of living in their operational regions. Moreover, performance bonuses and benefits like remote work options, health insurance, and professional development stipends make the overall compensation attractive.

Interview Difficulty Analysis

From candidate feedback, the CodeStore interview is often described as "challenging but fair." It’s not designed to trip you up with trick questions but rather to test authentic problem-solving skills. The technical rounds require solid command over fundamentals—expect data structures, algorithms, and system design questions in various combinations depending on the role.

Some candidates find the time constraints in coding assessments tight, especially under pressure, but many appreciate the opportunity to demonstrate depth over speed. The HR round is generally comfortable but can catch off-guard those unprepared for cultural discussions.

Compared to other mid-sized software firms, CodeStore’s process strikes a balance between technical rigor and human engagement. It’s more demanding than entry-level interviews but less brutal than high-stakes FAANG-style hiring marathons.

Preparation Strategy That Works

  • Understand the Job Description Deeply: Tailor your study to the specific technologies and skills mentioned. Don’t waste time broadly preparing unrelated topics.
  • Practice Real-World Coding: Use platforms like LeetCode or HackerRank but focus on problems that simulate practical scenarios, such as API development or database queries.
  • Brush Up on System Design: Even for junior roles, having a basic grasp of scalable architectures can set you apart.
  • Mock Interviews: Engage in peer mock interviews focusing on explaining your thought process aloud, as CodeStore interviewers value communication skills just as much as technical prowess.
  • Research the Company Culture: Read recent news, employee reviews, and company blogs to speak genuinely about why CodeStore aligns with your career goals.
  • Prepare Questions: Thoughtful questions during the HR interview demonstrate interest and help you evaluate fit.

Work Environment and Culture Insights

CodeStore employees often talk about a collaborative atmosphere where opinions at all levels are welcomed. The teams are relatively small, which fosters close communication and rapid iteration cycles on projects. There's a clear sense that the company values transparency and encourages continuous feedback.

Work-life balance is another frequent highlight. While deadlines can be demanding—as is typical in tech—managers generally respect personal time. Remote work policies have expanded, reflecting a commitment to flexible arrangements post-pandemic.

On the flip side, some candidates note that the fast pace and variety in projects can sometimes lead to shifting priorities, which might be overwhelming for those who prefer highly structured workflows. Adaptability is key here.

Career Growth and Learning Opportunities

Continuous learning is baked into CodeStore’s DNA. They allocate budgets for certifications, workshops, and conference attendance. Mentorship programs pair junior hires with seasoned developers, which accelerates skill development and integration.

Promotion tracks are clearly defined but emphasize performance and impact rather than tenure alone. Employees have opportunities to transition horizontally—for example, a developer interested in product management can find pathways to shift roles internally.

In a market where stagnation is a common concern, CodeStore’s investment in evolving careers stands out as a compelling reason to join.

Real Candidate Experience Patterns

Listening closely to job seekers who’ve been through CodeStore’s process reveals some consistent themes. Many describe initial nerves turning into appreciation for the interviewers’ conversational approach—there’s an evident effort to make candidates comfortable yet challenged.

Occasionally, candidates feel the technical assessments are a bit abstract compared to day-to-day work, which can cause frustration. However, follow-up interviews often allow them to contextualize their skills better by discussing actual projects.

Rejections, when they happen, tend to come with constructive feedback, which is not always standard in tech hiring and reflects a mature recruitment strategy focused on candidate experience.

Comparison With Other Employers

When stacked against other mid-sized tech firms, CodeStore’s hiring process is notably candidate-friendly. Unlike high-volume companies that emphasize speed, they lean toward quality interactions.

AspectCodeStoreTypical Mid-Sized Tech FirmFAANG-Style Giant
Interview Rounds3-4 (including coding and HR)2-35-6 (very rigorous)
Technical FocusPractical coding & system designVariable, often algorithm-heavyAlgorithm-intensive
Candidate ExperienceFeedback encouragedMixed; often automatedMinimal feedback
Culture Fit EmphasisHighMediumModerate
Salary RangeCompetitive within mid-marketVaries widelyTop-tier

For applicants weighing options, CodeStore offers a balanced proposition: solid compensation, a respectful process, and genuine growth opportunities.

Expert Advice for Applicants

Don’t just prepare to answer questions—prepare to have a dialogue. CodeStore interviewers look for candidates who engage thoughtfully and reflect the company’s collaborative spirit.

Focus your preparation on demonstrating how your past work connects to the challenges CodeStore faces. Concrete examples trump theoretical knowledge.

Also, be ready for cultural fit questions. Think about your work style, how you handle setbacks, and what kind of team environment energizes you. Authenticity matters here.

Finally, use the interview as a learning opportunity. Whether you land the role or not, the feedback and experience gained are valuable in themselves.

Frequently Asked Questions

What types of technical interview questions does CodeStore ask?

Expect a mix of coding problems, system design discussions, and practical scenarios related to the specific role’s technology stack. They focus on problem-solving and clean coding rather than obscure algorithmic puzzles.

How important is cultural fit in CodeStore’s recruitment process?

Extremely important. The company seeks candidates who align with their values of transparency, collaboration, and adaptability, which is why the HR interview is as critical as technical rounds.

Can fresh graduates apply for roles at CodeStore?

Yes, especially for junior developer or internship positions. However, candidates need a solid foundation in programming fundamentals and a portfolio or projects demonstrating practical skills.

Does CodeStore provide feedback to candidates after interviews?

Generally, yes. They aim to offer constructive feedback where possible, which is part of their candidate-friendly hiring philosophy.

What is the typical timeline from application to offer?

The process usually takes between 3 to 6 weeks, though it can vary based on the role and candidate availability.

Final Perspective

Landing a job at CodeStore is less about racing through a gauntlet of impossible questions and more about showing your authentic technical competence, adaptability, and cultural alignment. Their recruitment strategy reflects a mature understanding of not only acquiring talent but nurturing it over time.

For candidates, this means preparation should be holistic—technical skills are essential, yes, but equally important are communication skills and self-awareness. The company’s fair and transparent process makes it a promising destination for those who want a balanced, challenging, and growth-oriented tech career without losing the human element.

Ultimately, CodeStore stands as a refreshing example of how mid-sized firms can compete with tech giants by prioritizing meaningful candidate experiences and sustainable employee development.

CodeStore Interview Questions and Answers

Updated 21 Feb 2026

DevOps Engineer Interview Experience

Candidate: Emily Zhang

Experience Level: Senior

Applied Via: Recruiter outreach

Difficulty: Hard

Final Result: Rejected

Interview Process

4

Questions Asked

  • Explain your experience with CI/CD pipelines.
  • How do you ensure system reliability and uptime?
  • Describe a time you automated a complex process.
  • What monitoring tools have you used and why?

Advice

Gain hands-on experience with popular DevOps tools and be ready to discuss real-world scenarios and problem-solving approaches.

Full Experience

The process involved a technical phone screen, a hands-on practical test, a system design interview, and a final cultural fit discussion. The technical rounds were quite challenging and required deep knowledge of DevOps practices.

UX/UI Designer Interview Experience

Candidate: David Kim

Experience Level: Mid-level

Applied Via: LinkedIn application

Difficulty:

Final Result:

Interview Process

3

Questions Asked

  • Show us your portfolio and explain your design process.
  • How do you handle feedback from developers and product managers?
  • Describe a project where you improved user experience significantly.

Advice

Prepare a strong portfolio and be ready to discuss your design decisions and collaboration experiences.

Full Experience

The interview process included a portfolio review, a design challenge to be completed within 24 hours, and a final interview focusing on teamwork and communication skills. The team was very collaborative.

Quality Assurance Engineer Interview Experience

Candidate: Carmen Diaz

Experience Level: Entry-level

Applied Via: Job fair application

Difficulty: Easy

Final Result:

Interview Process

2

Questions Asked

  • What is the difference between manual and automated testing?
  • How do you write a test case?
  • Have you used any testing tools? Which ones?

Advice

Highlight any internship or project experience related to QA and familiarize yourself with common testing tools.

Full Experience

After submitting my resume at the job fair, I was invited for a phone interview focusing on basic QA concepts. The final round was a video interview with the QA team, which was friendly and supportive.

Product Manager Interview Experience

Candidate: Brian Lee

Experience Level: Senior

Applied Via: Referral from a current employee

Difficulty:

Final Result: Rejected

Interview Process

4

Questions Asked

  • How do you prioritize features in a product roadmap?
  • Describe a time you managed conflicting stakeholder interests.
  • How do you measure product success?
  • Present a go-to-market strategy for a new software tool.

Advice

Prepare detailed examples of product management experience and be ready to demonstrate strategic thinking and communication skills.

Full Experience

The interview process was thorough, including an initial HR screening, two rounds of product management case studies, and a final cultural fit interview. The case studies were intense and required on-the-spot problem solving.

Software Engineer Interview Experience

Candidate: Alice Johnson

Experience Level: Mid-level

Applied Via: Online application via company website

Difficulty:

Final Result:

Interview Process

3

Questions Asked

  • Explain the difference between REST and SOAP APIs.
  • Write a function to reverse a linked list.
  • Describe a challenging bug you fixed in a previous project.

Advice

Brush up on data structures and algorithms, and be ready to discuss your past projects in detail.

Full Experience

The process started with an online coding test, followed by a technical phone interview focusing on algorithms and system design. The final round was an onsite interview with the team, including behavioral questions and a coding challenge. The interviewers were friendly and provided clear feedback.

View all interview questions

Frequently Asked Questions in CodeStore

Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.

Common Interview Questions in CodeStore

Q: In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on.On the nth and last day, the remaining n medals were awarded.How many days did the contest last, and how many medals were awarded altogether?

Q: A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?

Q: Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits. Suppose that our rabbits never die and that the female always produces one new pair (one male, one female) every month from the second month on.

Q: There are two balls touching each other circumferencically. The radius of the big ball is 4 times the diameter of the small all. The outer small ball rotates in anticlockwise direction circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel always is horizontal.

Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...

Q: 36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the res...

Q: T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.

Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?

Q: ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.) (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?

Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.

Q: Tom has three boxes with fruits in his barn: one box with apples, one box with pears, and one box with both apples and pears. The boxes have labels that describe the contents, but none of these labels is on the right box. How can Tom, by taking only one p

Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter

Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?

Q: Give two dice - one is a standard dice, the other is blank (nothing painted on any of the faces). The problem is to paint the blank dice in such a manner so that when you roll both of them together, the sum of both the faces should lie between 1 and 12. Numbers from 1-12 (both inclusive) equally likely.

Q: Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 and 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings. How many earrings does Raj have?...

Q: There are four dogs/ants/people at four corners of a square of unit distance. At the same instant all of them start running with unit speed towards the person on their clockwise direction and will always run towards that target. How long does it take for them to meet and where?

Q: Consider a series in which 8 teams are participating. each team plays twice with all other teams. 4 of them will go to the semi final. How many matches should a team win, so that it will ensure that it will go to semi finals.?

Q: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?

Q: A Man is sitting in the last coach of train could not find a seat, so he starts walking to the front coach ,he walks for 5 min and reaches front coach. Not finding a seat he walks back to last coach and when he reaches there,train had completed 5 miles. what is the speed of the train ?

Q: A man driving the car at twice the speed of auto one day he was driven car for 10 min. and car is failed. he left the car and took auto to go to the office .he spent 30 min. in the auto. what will be the time take by car to go office?

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