Question bank

4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

Easy 190Medium 2,498Hard 982
Filters · onDifficulty, topic, company
Clear all

79 questions

  1. 49Estimate the market size for Google Fi.MediumProduct· Google
  2. 50What is the monthly sales volume of Pixel phones in Africa?HardProduct· Google
  3. 51A leading Canadian grocery chain is considering opening its first store in Montreal. Should they? If yes, what should be the ratio of self-checkout kiosks to cashier counters?HardProduct· Google
  4. 52How many grocery stores are required in a metropolitan city?MediumProduct· Google
  5. 53How many ping pong balls can fit in a helicopter?HardProduct· Google
  6. 54How many ping pong balls fit in a helicopter?MediumProduct· Google
  7. 55Estimate how many productivity hours are lost per year due to traffic.MediumProduct· Google
  8. 56How many quarters are needed to reach the height of the Empire State Building?MediumProduct· Google
  9. 57How many parking spots are there in San Francisco?HardProduct· Google
  10. 58How much time does a person spend at a traffic intersection during their lifetime?MediumDataProduct· Google
  11. 59How much oil, in barrels per year, does the United States import?MediumProduct· Google
  12. 60How many bikes are needed to launch a bike-sharing service in NYC?MediumProduct· Google
  13. 61How many calls are received per day?MediumProduct· Google
  14. 62How many airplanes are currently in the air over the Bay Area?MediumProduct· Google
  15. 63Estimate the circumference of the Earth at the Equator.MediumProduct· Google
  16. 64How many planes are currently flying over the US?MediumProduct· Google
  17. 65Estimate the number of restaurants in San Francisco.MediumProduct· Google, Google X
  18. 66Estimate the total miles run by joggers in Central Park.MediumBehavioralProduct· Google
  19. 67Estimate the number of trains operating in the NYC subway.MediumProductSystem design· Google
  20. 68You're starting a company to sell face masks. How many should you make?MediumProduct· Google
  21. 69What is your favorite international airport? Estimate daily arrivals and departures.MediumProduct· Google
  22. 70How many messages does Gmail receive per second?MediumProduct· Google
  23. 71What is the total addressable market (TAM) for Google Translate?MediumProduct· Google
  24. 72How many Pixel users are in the United States?MediumProduct· Google