Google's Toughest Interview Questions

Google’s Toughest Interview Questions: Test Your Problem-Solving Skills

Discover Google’s Toughest Interview Questions: Prepare for challenging brain teasers and problem-solving scenarios that test your skills under pressure. Learn how to tackle quantitative and broad thinking challenges. While the specific questions may vary, we provide a glimpse into past interview questions that have stumped candidates at Google.

Google has a reputation for asking difficult brain-teaser questions that challenge how you act under pressure.

Most of them require you to think quantitatively and broadly, and test the way you tackle problems on the spot.

Google probably switches up its questions over time, but career website Glassdoor provides a glimpse of the types of brain-stumping puzzles Google has asked in the past.

Not all of Google’s tricky questions are necessarily meant to be brain teasers–some of them sound simple, but turn out to be difficult to answer in a concise way. Here are Google’s Toughest Interview Questions

1. What is your favorite Google product, and how would you improve it?–Associate Product Manager, January 2016

2. If you wanted to bring your dog to work but one of your team members was allergic to dogs what would you do?–Associate Account Strategist, December 2014

3. If ads were removed from YouTube, how would you monetize it? – Associate Account Strategist, January 2016

4. What do you know about Google?–Administrative Business Partner Interview, February 2015

5. Design an evacuation plan for the building.–Business Analyst Interview, November 2014

6. Which do you think has more advertising potential in Boston, a flower shop or funeral home?–Account Strategist, October 2015

7. A coin was flipped 1000 times and there were 560 heads. Do you think the coin is biased?–Quantitative Analyst, September 2015

8. What does “being Googley” mean to you?–Product Specialist, December 2015

9. Name a prank you would pull on x manager if you were hired.–Google Applications Support Engineer, June 2014

10. What is your opinion on whether or not individuals should be required to use their official name when opening a gmail or Google + account?–Administrative Assistant Interview, April 2014

11. What would you want to do if you didn’t have to work?–Interaction Designer, September 2014

12. What scares you?–Business Analyst Interview, September 2014

13. How many ways can you think of to find a needle in a haystack?–Business Associate, May 2014

14. Estimate the number of tennis balls that can fit into a plane.–Intern, December 2015

15. If you could be remembered for one sentence, what would it be?–Associate Account Strategist Interview, March 2014

16. If you could only choose one song to play every time you walked into a room for the rest of your life, what would it be?–Associate Account Strategist Interview, March 2014

17. How do you think the digital advertising world will change in the next 3 years?–Creative Director, January 2016

18. What three things would you change at your university/work place if you were CEO today?–Account Strategist Interview, April 2014

19. Describe AdWords to a seven-year-old.–Associate Account Strategist Interview, December 2014

20. You have a grocery delivery service (similar to Amazon Fresh) which delivers food within 24 hours. Estimate how many trucks you need to operate this service.–Product Manager, November 2015

21. How would you explain cloud computing to a 6 year old?–Product Manager, November 2015

22. Tell me what you think about Google charging users $1/month to use GMail.– BOLD Candidate, October 2015

23. How many haircuts do you think happen in America every year?–Business Associate, May 2014

24. List six things that make you nervous.–Android Support Level III, July 2014

25. Tell me something about you that isn’t on your resume.–Associate Account Strategist Interview, March 2014

26. What is the market for driverless cars in the year 2020?–Product Manager, November 2015

27. Model raindrops falling on a sidewalk (sidewalk is 1m and raindrops are 1cm). How could we know when the sidewalk is completely wet?–Software Engineer, January 2016

28. How would I explain the importance of HTML 5 to Larry Page and then to my grandma. — Creative Specialist, January 2016

29. Tell me a joke. — Executive Assistant Interview, March 2014

30. The best question in my opinion was, they asked me at this stage whether you prefer earning or learning. — Software Engineer, January 2016

31. If I gave you 10 million dollars right now, what would you do?–Associate Account Strategist, May 2014

32. Define a service that would allow you to travel to the future.–Interaction Designer, December 2015

33. Would you remove the link to an extremist piece of writing?–Legal Assistant, December 2015

34. How could you solve humankind’s biggest crisis given one billion dollars and a spacecraft?–Database Administrator, December 2015

35. You have a colony on Mars that you want to communicate with. How do you build a system to communicate with them?–Associate Product Manager, November 2014

36. How many cars travel across a bridge each day?–Advertising Interview, September 2014

37. If you had access to a bank’s database, how would you use that information to design an ATM for elderly people?–Associate Product Manager, February 2015

38. How would you improve a shoe factory?–Field Operations Specialist, November 2014

39. Design a mobile social app for a chain of local orthodontist offices.–Product Manager, November 2015

40. What are the number of new book titles published in the US each year?–Product Manager, November 2015

41. How would you solve homelessness in downtown San Francisco?–Product Manager, November 2015

Here are some additional Google interview questions that were asked up until 2021:

  1. Describe a time when you had to persuade someone to see things your way.
  2. How would you explain a complex technical concept to a non-technical audience?
  3. Design a system to track and manage inventory for an e-commerce website.
  4. How would you optimize Google Search for mobile devices?
  5. Solve a coding problem: Implement a function to check if a binary tree is balanced.
  6. How would you design a recommendation system for a streaming platform like Netflix?
  7. Describe a challenging project you worked on and how you overcame obstacles.
  8. How would you improve Google Maps to provide more accurate real-time traffic information?
  9. Solve a coding problem: Find the kth largest element in an unsorted array.
  10. How would you approach reducing the environmental impact of data centers?
  11. Describe a time when you had to make a difficult decision with limited information.
  12. Design a scalable and efficient system for processing and analyzing large volumes of data.
  13. How would you detect and prevent fraudulent activity on an online marketplace?
  14. Solve a coding problem: Reverse a linked list.
  15. How would you optimize the performance of a web application?
  16. Describe a time when you had to collaborate with a difficult team member.
  17. Design a system to detect and mitigate distributed denial-of-service (DDoS) attacks.
  18. How would you improve the user experience of a popular social media platform?
  19. Solve a coding problem: Determine if two strings are anagrams.
  20. Describe a time when you had to quickly learn a new technology or programming language.