There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

What do you see in the image below

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

The more you take me, the more you leave me behind.
Who Am I?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What number do you get when you multiply all of the numbers on a telephone's number pad?

Prove that twice of ten is the same as twice of eleven.

The more of this there is, the less you see. What is it?

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