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?

Can you decipher the two rows to find the hidden word?

A man dies of old age on his 25 birthday. How is this possible?

What do you get if you add 2 to 100 four times?

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

What is red and smells like blue paint?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

What can you see in the middle of March and April that you can never see in any other month?

Why are all black people so quick ?