Riddles and answers

Q: What goes up and down at the same time but doesn't move?

A: The stairs

Q: What's black when you get it, red when you use it and white when you're all through with it?

A: Charcoal

Q: I drive men mad for love of me, easily beaten, never free?

A: Gold

Q: Railroad crossing, look out for the cars. Can you spell that without any R's?

A: That 

Q: Why does the teacher wear sunglasses when she comes to the class?

A: Because the students are bright

Q: How do you spell candy in two letters?

A: C and Y. C (and) y

Q: What are the science teacher's favourite states?

A: Solid, liquid and gas. The states of all matter

Q: What is bigger than an grey elephant yet, weight nothing. What is it?

A: The elephant shadow

Q: What starts with 'P' ends with 'E' and has many letters?

A: Post office

Q: How many bricks does it take to complete a brick building?

A: One brick