Monday/ so you think you can work at Google?

.. that’s what this weekend’s Wall Street Journal Review section challenges its readers with, with an article about interview questions candidates can expect at Google.   Want to give them a try? (If you don’t have training in math and engineering, just try Question 5).   I’m going to take a crack at them myself without peeking at the answers at the back of the newspaper, and will report back tomorrow!

Question 1 : What is the next number in the sequence 10, 9, 60, 90, 70, 66, .. ?

Question 2: You’re in a car with a helium balloon on a string that is tied to the floor. The windows are closed. When you step on the gas pedal, what happens to the balloon – does it move forward, move backward, or stay put?

Question 3 : Using only a 4-minute hourglass and a 7-minute hourglass, measure exactly 9 minutes – without the process taking longer than 9 minutes.

Question 4 : A book has N pages, numbered the usual way, from 1 to N. The total number of digits in the page numbers is 1,095.  How many pages does the book have?

Question 5 : A man pushed his car to a hotel and lost his fortune.  What happened?

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