Since light travels faster than sound, isn't that why some people appear bright until you hear them speak?
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.