Good Riddles

Question: What word links these images?

Question: A man walks all the way around the world without getting wet.

How does he do this?

Question: A thousand wheels, but move I do not.
Call me what I am, call me a lot.

What am I?

Question: There was a family who lived in a circle house, one day they went on vacation but they left their little boy behind. When they came back they found their little boy dead in the middle of the house. They narrowed it down to three suspects: The maid, the butler, and the chef. The maid claims she was cleaning the corners, the butler claims he was organizing the closet, and the chef claims he was making finger sandwiches.

Who killed the little boy?

Question: At the beginning of the first day of school there was a dead boy found inside of a classroom. They found 3 suspects: The janitor, the teacher and one of the boy's classmates. The janitor claims that he was just cleaning the room, the teacher said that she was computing her student's grades and the boy's classmate claims that he was listening to music.

Who committed the crime?