In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Prove that the below maths equation is true.

8 + 8 = 91

A bomb exploded in a room full of married couples and no one died. How?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

What makes this number unique: 8,549,176,320?

What do you see in the image below

Decode below rebus
D
N
A
T
S , D

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

You can see it everyday, But cannot touch it at will. What is it?