![You're still working on
Sheldon's dumb brain teaser?
You're still working on
Sheldon's dumb brain teaser?](https://content2.mcqstudy.com/ss/tbbt-11-12-00:15:50.323.jpeg)
You're still working on
Sheldon's dumb brain TEASER?
The Big Bang Theory Season 11, Episode 12
![Sheldon gave me a brain teaser.
It's kind of fun.
Sheldon gave me a brain teaser.
It's kind of fun.](https://content2.mcqstudy.com/ss/tbbt-11-12-00:12:37.779.jpeg)
Sheldon gave me a brain TEASER.
It's kind of fun.
The Big Bang Theory Season 11, Episode 12
![Penny's brain teaser
this morning.
Penny's brain teaser
this morning.](https://content2.mcqstudy.com/ss/tbbt-5-1-00:00:42.504.jpeg)
Penny's brain TEASER
this morning.
The Big Bang Theory Season 5, Episode 1