Why do people go to bed?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

Which is the correct shadow of the bird?

How many triangles are there in the picture below?

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

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

What demands an answer, but asks no questions

What can go through glass without breaking it?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?