IAS Interview Question

If it took eight men ten hours to build a wall, how long would it take four men to build it?




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In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

Brilliant students Riddle

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Riddles From Picture

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Why blonde cannot dial 911?

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Replace The Question Mark Below With the Correct Number.

2 {38} 3
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In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki