Fun Riddles

Question: You have two books. One of them is upside-down and the other is rotated so the top of the book is facing you.

What is the sum of the first page in each book?

Question: The more you take, the more you leave behind.
What are they?

Question: One evening a man started to run. Then he turned left. Soon after, he turned left again. Then he started running home. When he got home there were 2 masked men waiting for him. Who were they?

Question: What kind of room has no doors or windows?

Question: I only point in one direction,
but I guide people around the world.

What am I?