Solve the mathematical equation in the picture below.

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Why is 6 afraid of 7?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

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

What does below rebus means ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?