Three fishermen catch a mermaid. If they agree to set her free, she will grant them each a wish.
The first guy says, "OK, I want you to double my I.Q." Immediately, the guy recites Shakespeare flawlessly.
The second guy asks the mermaid to triple his I.Q. Suddenly, he's spouting complicated mathematical solutions.
Impressed, the last guy asks the mermaid to quintuple his I.Q. The mermaid hesitates and asks, "Are you sure that's what you really want?"
"Absolutely!" says the man.
The mermaid smiles. Instantly, the third man turns into a woman.