Why did the banana go out with the prune?
Because he couldn't find a date!
Why did the barber win the race?
Because he took a short-cut!
The 50-50-90 rule:
If you have a 50-50 chance of getting something right...
There’s a 90% probability you'll get it wrong.
"What happened, where were you?"
"Sorry, I forgot all about the Amnesia Conference!"