Just one, but it takes him 20 episodes.
Somebody had an idea.
They still haven't figured out how to screw in the lightbulb
No one knows it's never happened.
Ten. One to actually change the lightbulb and nine to bring refreshments
Tell him you belong to "the" 20%.
It said that it had 20 cookies in it.
Just one. But it takes 20 episodes
20 Episodes and Krillin dies.