Two, one to hold the bulb and one to rotate the universe.
Four - three to cut a hole in the roof and one to change the bulb.
Two. One to screw in the bulb and another to talk about how complicated it was.
Hippies don't screw in lightbulbs they screw in dirty sleeping bags.
THERE CAN BE ONLY ONE.
Because they couldn't hold their trunks up !
ISIS
None. In Russia, light bulb changes you.
They don't bother, you can find lutfisk in the dark.
All the Milky Ways. You get it.
Because they thought that they were the center of the universe.
Interviewer:"If the Earth rotates 30 times faster, what will happen?" engineer:"We will get our salary everyday" :D Think Greedily Act Confidently
Two. One to hold it in place, another to rotate the universe around it.