Good Riddles

Question: The 22nd and 24th Presidents had the same biological mother and father, but weren't brothers. They were both male, and were never female. Neither were adopted or "switched at birth". How is this possible?

Question: Who is reading this question now?

Question: One night a man and woman got on th boat. The man and woman got off. Who were left.

Question: How can six become sticks?

Question: I have numbers on my face but can't find 13 any place. What am i?