The white amount.
Two, one to change the lightbulb, and the other to bask in the light of the old one.
A lightbulb.
Just one. But he has to check it 100 times one for each watt.
Just one, but they need a backup.
A LepreKHAAAAAAN!
Hue hue hue hue
There is writing on the White-out.
Because it's Nicaragua