Fun Riddles

Question: There's a place in the world where the wind blows south then suddenly north.

Where is it?

Question: A man is twenty years old but has only had five birthdays. How is that possible?

Question: I'm red, blue, purple and green.
No one can reach me, not even the queen.

What am I?

Question: A man in prison has a visitor. Afterward a guard asks the inmate who the visitor was to him. The inmate replies: "brothers and sisters I have none, but that man's father is my father's son." Who was the visitor to the inmate?

Question: What number do you get when you multiply all of the numbers on a telephone's number pad?