Can you start the fire using two pieces of wood?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

John was piloting a plane behind a car but was never able to overtake it. Why?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

What does Alexander the Great and Winnie the Pooh have in common?

10+10 and 11+11 can give you the same answer.

Explain how?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

What is the end of everything?