How many folk singers does it take to change a lightbulb?
Five.
One to change the bulb and the other four to sing about how good the old one was.
How many psychiatrists does it take to change a lightbulb?
One, but deep down the bulb has got to want to change.
How many Russians does it take to change a lightbulb?
Three.
One who knows electrik, one who read circuit diagram and a KGB man to keep an eye on two suspicious intellectuals