I look at you, you look at me, I raise my right, you raise your left. What am I?

If six children and two dogs were under an umbrella, how come none of them got wet?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

Name a key which is hardest to turn.

If you say my name, I will no longer exist. What am I?

Which country gets ill every time?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?