Two. One to screw it almost all the way in and one to give it a surprising twist at the end.
Two, but how do they get in there?
None, they would rather keep you in the dark!
One after reflecting in the twilight on the merit of the previous bulb.
A. 3. 1 to find the bulb 1 to find a ladder and 1 to find a man.
They are both ment for boys but in the end it's the men who plays with them
Thanks Verstappen.
Two: one to get it 95% done, and the second to give it the twist at the end.
Two - One to put it most of the way in, and one to give it an interesting twist at the end.