Just one, but it takes him 20 episodes.
How many data wranglers does it take to change a lightbulb? Just one, but they need a backup.
2 . One to screw it in and another to say, "I could do that".
They can't. There's a wall.
Two. One to change it and one to yell "Ta-daa!" when he's done.
He bet 10$ on the soccer game and 20$ on the replay.
A wind tunnel.
Just one. But it takes 20 episodes
20 Episodes and Krillin dies.