"Square Pie or Pi Squared?" joke
The teacher noticed that Johnny had been daydreaming for a long time, so she decided to get his attention. "Johnny," she said, "if the world is 25,000 miles around and eggs are sixty cents a dozen, how old am I?"
Johnny answered, "Thirty-four."
The teacher replied, "Well, that's not far from my age. Tell me... how did you guess?"
"Oh, there's nothing to it," Johnny said. "My big sister is seventeen and she's only half-crazy."
Person 1: Knock, Knock
Person 2: Who's there?
Person 1: Cows go.
Person 2: Cows go who?
Person 1: No, silly! Cows go moo!
A guy walks into a pub and sees a sign hanging over the bar which reads:
Cheese Sandwich: $1.50
Chicken Sandwich: $2.50
Hand Job: $10.00
Checking his wallet for the necessary payment, he walks up to the bar and beckons to one of the three exceptionally attractive more...
Normal people believe that "If it ain't broke, don't fix it." Engineers believe that "If it ain't broke, it doesn't have enough features yet"