Logic Riddles

Question: A man and his boss have the same parents, but are not siblings. How is this possible?

Question: A man was born on January 1st, 23 B.C. and died January 2nd, 23 A.D. How old did he live to be?

Question: A man has hundreds of bodies buried on his land, many of which are cops and criminals. Many people find out what he has been doing, but none go to the police.

Why not?

Question: A man is at work when he turns off the light and falls asleep. When he wakes up he discovers that lots of people have died.

What is his profession?

Question: There was a man who was born before his father, killed his mother, and married his sister. Yet there was nothing wrong with what he had done.

Why?