There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

What is at the end of a rainbow?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Can you make a fire with just a single stick?

What has many keys but can’t open a single lock?