Measure by Hourglass

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?




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Decode the Rebus

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Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?

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The angle of a triangle

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Can you find out who am I?

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Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

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Count the number of balls in picture below:


Count The Balls

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Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.