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 ?




Similar Riddles

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

Asked by Neha on 03 Feb 2024


I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

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Remove two matchsticks to make the below equation correct.

Make the Equation Correct

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A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

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Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

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This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

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A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

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What seven-letter word has hundreds of letters in it?

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There are seven sisters in a house in a village where there is no electricity or any gadget.

Sister-1: Reading Novel
Sister-2: Cooking
Sister-3: Playing Chess
Sister-4: Playing Sudoku
Sister-5: Washing clothes
Sister-6: Gardening

what is Sister-7 doing ?

Asked by Neha on 26 Jan 2025


What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

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Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.