![wow, a challenging time,
to put it mildly.
wow, a challenging time,
to put it mildly.](https://content2.mcqstudy.com/ss/bb-2-10-00:09:00.414.jpeg)
wow, a CHALLENGING time,
to put it mildly.
Breaking Bad Season 2, Episode 10
![](https://content2.mcqstudy.com/ss/tbbt-12-23-00:25:21.955.jpeg)
"The CHALLENGING
climate of Scandinavia
The Big Bang Theory Season 12, Episode 23
![It really doesn't matter
as long as it's challenging.
It really doesn't matter
as long as it's challenging.](https://content2.mcqstudy.com/ss/tbbt-10-22-00:07:44.590.jpeg)
It really doesn't matter
as long as it's CHALLENGING.
The Big Bang Theory Season 10, Episode 22
![I know what a challenging man he could be,
I know what a challenging man he could be,](https://content2.mcqstudy.com/ss/tbbt-9-14-00:16:56.934.jpeg)
I know what a CHALLENGING man he could be,
The Big Bang Theory Season 9, Episode 14
![Not challenging?
I was humiliating the man.
Not challenging?
I was humiliating the man.](https://content2.mcqstudy.com/ss/tbbt-6-6-00:08:52.771.jpeg)
Not CHALLENGING?
I was humiliating the man.
The Big Bang Theory Season 6, Episode 6