or a CHALLENGE to the system.
Money Heist Season 3, Episode 8
I have no interest in playing a game
in which I find no CHALLENGE.
The Big Bang Theory Season 3, Episode 5
I CHALLENGE you to find a single reference
to Kryptonian skin cells.
The Big Bang Theory Season 1, Episode 2
Maybe you need to CHALLENGE
your motor skills.
The Big Bang Theory Season 10, Episode 22
Challenge accepted! Sounds like it's time
for the Sheldon Cooper Apology Tour!
The Big Bang Theory Season 9, Episode 13