Four. One to change the bulb and three to make a t-shirt about it.
Two. One to hold the bulb, and another to spin the story until the bulb fits.
A. 3. 1 to find the bulb 1 to find a ladder and 1 to find a man.
Only one, but the light bulb really has to want to change.
So the one on the right could drive for a change.
Two, but how do they get in there?
Seven - one to actually change the bulb and six to complain that they liked the old one better.
Six. One to change it, one to take pictures and four to make t-shirts for the event.
A dog has a better understanding of no.