How many Quebecers does it take to change a lightbulb?
4!
One to hold the bulb, two to turn the chair he's standing on, and one to sing "Alouette, gentille alouette!"
Why are there so many jokes about Chuck Norris, but not about Bruce Lee?
Bruce Lee was no joking matter.
How many animals can jump higher than a skyscraper? -- All of them, skyscrapers can't jump.
"Chuck? How many push-ups can you do?" -- "All of them."
An chemist, a physicist, and a mathematician are stranded on an island when a can of food rolls ashore.
The chemist and the physicist come up with many ingenious ways to open the can. Then suddenly the mathematician gets a bright idea: "Assume we have a can opener..."
How many programmers does it take to change a light bulb?
None, that's a hardware problem.