Logic Riddles

Question: (1) What am I and (2) how do you spell it?

Question: A man lived on the 12th floor of a building it was a nice building anyway when he goes to work he gets in the elevator and goes to the bottom floor. When he comes back he goes to the 7th floor and walks the rest. But when there is someone else in the elevator he goes to the 12th and when it is raining why.

Question: Who's tallest is faster then it's shortest but it's thinnest is faster then it's tallest?

Question: I sit on a bridge so you might see just how clear the world can be. What am I?

Question: I was crucified to keep murders out of the maze. What am I?