Just one, but it takes him 20 episodes.
It only takes two, but the trick is getting them in the lightbulb.
Just two, as long as they can find a way in.
None, because they keep on asking why all of the other light bulbs in the house aren't being changed at the same time.
Don't look at me I'm changing!
There's 20 of them.
Just one. But it takes 20 episodes
20 Episodes and Krillin dies.
