You need to move three matchsticks to form three squares. Can you do it?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

The dirtier I get, the whiter I look. Who am I?

I make two people out of one. What am I?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What can jump higher than a building?

how come the second man dies?

Our product and our sum always give the same answer. Who are we?

A father's child, a mother's child, yet no one's son.

Who am I?