Logic 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: A man is found murdered on the ground with 53 bicycles scattered around the room.

How did he die?

Question: You are in a jungle and you come across a lion and a jaguar. You have a gun but there is only one bullet left. Which one do you shoot?

Question: I'm not a pool, a tree, a slave, a website, or a shirt.

What am I?

Question: In a certain society any time somebody commits a serious crime they must be shot at twice with a 6 bullet revolver. The revolver only has two bullets in it though, both of them right next to each other. They spin the revolver once and shoot the gun. If there was no bullet in that chamber they give the prisoner the option to either spin the chamber again or just shoot again. If the first shot is a blank, should the prisoner ask for the revolver to be spun or should they choose that it be shot again?