Three guys are out having a relaxing day fishing. Out of the blue, they catch a mermaid who begs to be set free in return for granting each of them a wish.

Now one of the guys just doesn't believe it and says, 'Okay, if you can really grant wishes, then double my IQ.'

The mermaid says, 'Done.'

Suddenly the guy starts reciting Shakespeare flawlessly and analyzing it with extreme insight.

The second guy is so amazed he says to the mermaid, 'Triple my IQ.'

The guy starts spouting out all the mathematical solutions to problems that have been stumping all of the scientists of varying fields: physics, chemistry, etc.

The last guy is so enthralled with the changes in his friends, that he says to the mermaid, 'Quintuple my IQ.'

The mermaid looks at him and says, 'You know, I normally don't try to change people's minds when they make a wish, but I really wish you'd reconsider.'

The guy says, 'Nope, I want you to increase my IQ times five and if you don't do it, I won't set you free.' But no matter what the mermaid said, the

guy insisted on having his IQ increased by 5 times it's usual power. So the mermaid sighed and said, 'Done.'

And he became a woman...