I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Be active and find the killer in the picture Riddle below.

What has lots of eyes, but can’t see?

What is the difference between a jeweller and a jailer?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?