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

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Asked by Neha on 02 May 2024


Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Asked by Neha on 04 Mar 2025

A Car driver was heading down a street in Washington. He went right past a stop sign without stopping, he turned left where there was a 'no left turn' sign and he went the wrong way on a one-way street. Then he went on the right side of the road past a cop car. Still, he didn't break any traffic laws. Why not?

Car Driver Going Wrong

Asked by Neha on 03 Mar 2021


You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?

Asked by Neha on 17 Dec 2025

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Asked by Neha on 17 May 2021

You bought me for dinner but never eat me. What am I?

Asked by Neha on 31 Aug 2025


Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Asked by Neha on 24 Sep 2025

With the help clues provided in the image, can you find the 5 digit key?

Find the Key

Asked by Neha on 14 May 2021

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

Asked by Neha on 30 May 2023


Our product and our sum always give the same answer. Who are we?

Asked by Neha on 11 Oct 2021

Hot Articles

Amazing Facts

Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.