Q: How many dinosaurs does it take to change a lightbulb ?
A: It takes thousands of dinosaurs millions of years......cos they have to evolve deposable thumbs so that they can grip the bulb to screw it in.

Q: How many divorcees does it take to change a lightbulb ?
A: None. The sockets all went with the house.

Q: How many doctors does it take to screw in a light bulb?
A: That depends on whether it has health insurance.
A: Three. One to find a bulb specialist, one to find a bulb installation specialist, and one to bill it all to Medicare.
A: None. They just tell it to take two asprin and come round to the surgery later.
A: None. They only sign the death certificate and phone the mortuary.
A: None. They would diagnose depression and prescribe benzo diazapines.
A: Only one, but he has to have a nurse to tell him which end to screw in.

Q: How many drummers does it take to change a lightbulb ?
A: Only one, but he'll break ten bulbs before figuring out that they can't just be pushed in.
A: One, but only after asking "Why?"
A: Two: one to hold the bulb, and one to turn his throne (but only after they figure out that you have to turn the bulb).
A: None. They have a machine that does that now.
A: 10. One to change the lightbulb and the other 9 to dicuss how John Bonham would have done it !
A: One .. Two, and a-one two three four