How can a man go eight days without sleep?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What does Alexander the Great and Winnie the Pooh have in common?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

You can see three almost identical images below. Can you spot the odd one out from them?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

There are forty elephants and they have forty-fore heads. How can this be possible?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

I have an eye but still cannot see.

Who am I?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)