Q: How many Jewish mothers does it take to screw in a light bulb?
A: None. ("Thats all right...I'll just sit here in the dark...")

Q: How many mice does it take to screw in a light bulb?
A: Only two, but the hard part is getting them into the light bulb.

Q: How many Polish workers does it take to change a light bulb?
A: Just one, but you need 6000 Russian troops in case he goes on strike!

Q: How many WASPs does it take to screw in a light bulb?
A: Silly, WASPs don't screw in a light bulb, they screw in a hot tub.

Q: How many Marxists does it take to screw in a light bulb?
A: None: The light bulb contains the seeds of its own revolution

Q: How many (Generals/Politicians) does it take to change a light bulb?
A: 1,000,001: One to change the bulb and 1,000,000 to rebuild civilization to the point where they need light bulbs again.

Q: How many survivors of a nuclear war does it take to screw in a light bulb?
A: None, because people who glow in the dark don't need light bulbs.

Q: How many Russian leaders does it take to change a light bulb?
A: Nobody knows. Russian leaders don't last as long as light bulbs.

Q: How many nuclear engineers does it take to change a light bulb?
A: Seven. One to install the new bulb and six to figure out what to do with the old one for the next 10,000 years.