Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

What does an Island and the letter T have in common?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

The centre of the third figure is empty. What digit should fit inside?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

10+10 and 11+11 can give you the same answer.

Explain how?