Here are some randomly selected joke topics
Computers
If at first you don't succeed, you must be a programmer.
Brain
If your brain was chocolate it wouldn't fill an M&M.
Light Bulbs
How many survivors of a nuclear war does it take to screw in a light bulb?
None, because people who glow in the dark don't need light bulbs.
Ghosts
What do you call a ghost who only haunts the Town Hall?
The nightmayor.
Polar Bears
Hear about the polar bear who tried to eat a penguin?
He couldn't get the wrapper off.
Henry VIII
King Henry VIII went to heaven. St Peter said, 'Tell me, why did you have so many different wives?'
Henry said, 'I like to' chop and change.'
Karate
Did you hear about the karate champion who joined the army?
The first time he saluted, he nearly killed himself.
Plumber
What did the plumber say to his girlfriend called Flo when he wanted to find a new girlfriend?
It's all over Flo.
School
Old School Pillars are Replaced by Alumni