![How hard is 65% Coke,
35% Diet Coke?
How hard is 65% Coke,
35% Diet Coke?](https://content2.mcqstudy.com/ss/tbbt-12-23-00:16:19.848.jpeg)
How hard is 65% Coke,
35% Diet Coke?
The Big Bang Theory Season 12, Episode 23
![...and their potato-based diet.
...and their potato-based diet.](https://content2.mcqstudy.com/ss/tbbt-8-22-00:08:26.405.jpeg)
...and their potato-based DIET.
The Big Bang Theory Season 8, Episode 22
![Playing Halo? Watching Battlestar?
Drop some Mentos in Diet Coke?
Playing Halo? Watching Battlestar?
Drop some Mentos in Diet Coke?](https://content2.mcqstudy.com/ss/tbbt-2-19-00:14:50.638.jpeg)
Playing Halo? Watching Battlestar?
Drop some Mentos in Diet Coke?
The Big Bang Theory Season 2, Episode 19
![Why are you on a diet?
Why are you on a diet?](https://content2.mcqstudy.com/ss/tbbt-7-2-00:03:30.184.jpeg)
Why are you on a DIET?
The Big Bang Theory Season 7, Episode 2
![His diet is rich in fatty deli meats.
His diet is rich in fatty deli meats.](https://content2.mcqstudy.com/ss/tbbt-6-9-00:18:35.567.jpeg)
His DIET is rich in fatty deli meats.
The Big Bang Theory Season 6, Episode 9