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Interview Puzzles

Collection of Puzzles asked in Interviews

This section of the website has been made to help the guys prepare for jobs/interviews and of course for those who like brain teasers. First try to solve the puzzle on your own, then look for solution. Each problem is a challenge in itself, so give them your best try.

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Another Bulb Problem

April 22, 2014 by Dana 9 Comments

On a circle there are 2014 light bulbs, 2 are ON, and 2012 are OFF. You can choose any bulb and change the neighbor’s state from ON to OFF or from OFF to ON. Doing so, can we get all 2014 light bulbs on ? If yes, How?

 

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