First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

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?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

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

I am an odd number. Take away a letter and I become even. What number am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

What's a single-digit number with no value?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

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

Who am I?

How is the moon similar to a dollar?