"Lightbulb joke collection 21" joke

Q: How many alien life forms does it take to screw in a light bulb?
A: Yeah, wouldn't the guys at SETI like to know *that*!

Note: SETI = Search for Extra-Terrestrial Intelligence.

Q: Why did the lightbulb fall out of the tree?
A: Because it was doing an impersonation of the sun, setting.

Q: Why did the lightbulb fall out of the tree?
A: Because Christmas tree decorations are always cheap and nasty.

Q: How many lightbulbs does it take to change a dyslexic?
A: One. It isn't too easy.

Q: How many dyslexics does it take to bulb a light change?
A: 10, one to change the light bulb and 9 to misread the manual.

Q: How many dyslexics does it take to bulb a light change?
A: Eno.

Q: How does an engineer change a lightbulb?
A: As long as lighting levels are within operational parameters, he doesn't!

Q: How many chess grandmasters does it take to change a lightbulb?
A: None. They are too "Short".