Tag Archives: Cool Puzzles

13 Caves And A Thief Puzzle

September 14, 2013 12:09 pm | 24 Comments |
13-caves-and-a-thief-puzzle-150x150

Problem: There are 13 caves arranged in a circle. There is a thief  in one of the caves. Each day the the thief can move to any one of adjacent cave or can stay in smae cave in which he was staying the previous day. And each day, cops are allowed to enter any two … Read More →

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The Fox and The Duck Puzzle

July 28, 2013 11:09 pm | 6 Comments |
duck and fox puzzle

Problem: This is the classical puzzle asked in microsoft interview A duck, pursued by a fox, escapes to the center of a perfectly circular pond. The fox cannot swim, and the duck cannot take flight from the water. The fox is four times faster than the duck. Assuming the fox and duck pursue optimum strategies, … Read More →

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100 Prisoners and a Light bulb

July 17, 2013 9:22 pm | 4 Comments |
light-bulb-100-prisoner-350x250

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 →

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17 Horses Puzzle

July 15, 2013 9:35 am | 13 Comments |
17 horses and 3 sons puzzle

Problem: A farmer wants to divide his 17 horses among his three sons. According to farmer the oldest son should get half of the horses,the middle son should get one third of the horses and the youngest son should get one ninth of the horses. When their father died they were not able to divide … Read More →

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