This blonde was walking down a road carrying a bag, when a guy came along.
The guy asks, “What are you carrying?”
“Melons, “the blonde replies.
“Cool, “the guy says.
“If I can guess how many there are, can I have one of them?”
The blonde giggles and says, “If you can guess how many there are, you can have both of them”
This joke is included in the Black Book of Jokes. You can order it from here.