Problem: There are 100 prisoners are in solitary cells, unable to see, speak or communicate in any way with each other. There’s a central living room with one light bulb, the bulb is initially off. No prisoner can see the light bulb from his own cell. Everyday, the warden picks a prisoner at random, and … Read More →
This puzzle is perhaps not as ‘pure’ as the others, it doesn’t reduce to a mathematical model. But it is quite a common question asked in interviews so it’s worth looking at it… Problem: You are in a room with 3 switches which correspond to 3 bulbs in another room and you don’t know which … Read More →
This is a very popular brain teaser with many companies. Problem : We have 10 identical bottles of identical pills (each bottle contain hundred of pills). Out of 10 bottles 9 have 1 gram of pills but 1 bottle has pills of weight of 1.1 gram. Given a measurement scale, how would you find the … Read More →
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