Time Measurement

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?




Similar Riddles

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Asked by Neha on 07 Nov 2025


You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Red Cross Sign Riddle

Asked by Neha on 08 Nov 2025

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

Asked by Neha on 20 Aug 2023


Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Asked by Neha on 20 Feb 2025

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Two Door Two Guard

Asked by Neha on 06 Mar 2021

What can go through glass without breaking it?

Asked by Neha on 23 Aug 2025


Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Asked by Neha on 01 Mar 2022

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Asked by Neha on 09 Nov 2025

Who is that with a neck and no head, two arms and no hands? What is it?

Asked by Neha on 27 Mar 2022


Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

Asked by Neha on 06 Mar 2024

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Crossword puzzles

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