The bulbs IN and it's staying IN!
One, although it's probably screwed in too tight anyway.
When they're on their backs, they're screwed.
Two: One to hold it one to hammer it in.
100. 1 to change the light bulb and the other 99 to complain about how the old light bulb was much better.
Trees. They're quite shady.
He was trying to find a cure for insomnia.