![You really want to challenge yourself,
you could learn to speak Hindi.
You really want to challenge yourself,
you could learn to speak Hindi.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
You really want to CHALLENGE yourself,
you could learn to speak Hindi.
The Big Bang Theory Season 10, Episode 22
![Challenge accepted! Sounds like it's time
for the Sheldon Cooper Apology Tour!
Challenge accepted! Sounds like it's time
for the Sheldon Cooper Apology Tour!](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Challenge accepted! Sounds like it's time
for the Sheldon Cooper Apology Tour!
The Big Bang Theory Season 9, Episode 13
![Oh, come on, a smart guy like you?
It'll be a challenge.
Oh, come on, a smart guy like you?
It'll be a challenge.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Oh, come on, a smart guy like you?
It'll be a CHALLENGE.
The Big Bang Theory Season 3, Episode 10
![The challenge is declined.
The challenge is declined.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
The CHALLENGE is declined.
Vikings Season 1, Episode 6
![She has set me a challenge
She has set me a challenge](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
She has set me a CHALLENGE
Vikings Season 1, Episode 9