Twenty feet, 20 light years.
It doesn't matter.
The Big Bang Theory Season 2, Episode 21
Twenty million.
Money Heist Season 3, Episode 8
Twenty thousand men, horses,
elephants, I believe.
Game of Thrones Season 7, Episode 7
Twenty fucking years.
Game of Thrones Season 5, Episode 8
I don't think you could ride the dragon.
Twenty years ago, maybe.
Game of Thrones Season 6, Episode 4