Not sure, gotta catch them all first!
Two. One to identify that the lightbulb has indeed burned out, and one to call the maintenence man to change the lightbulb.
Only one, but the light bulb really has to want to change.
FORE!
He holds the light-bulb over the socket and waits for the world to revolve around him.
There is no cod
With an Internet.
The Catcher in the Rye.