Only one, but the light bulb should be willing to change.
Well, not all of them.
A: Nobody knows. Russian leaders don't last as long as light bulbs. A: None the old bulb is just suffering from a cold.
Who gives a cluck (I wonder if the moderators will censor this joke merely on the grounds that it is categorically terrible )
Just one he holds it still and the whole world revolves around him. Just one but two lawyers have to explain him how to do it.
A magician makes rabbits appear in hats, while a psychologist makes habits appear in rats.
