Light Bulb - Sado-Masochists

Q: How many sado-masochists does it take to change a lightbulb?
A: Two. One to hold it and one to kick the chair out from under him.

Russian Light Bulbs

Q: How many Russians does it take to change a light bulb?
A: That's a military secret.

Beverly Hills Residents to Change Lightbulb

Q: How many Beverly Hills residents does it take to screw in a lightbulb?
A: None, they have a service come in and do that.