Back when I was younger and interviewing candidates for a startup where I was one of the oldest engineers my favorite "fit" question used to be "tell me your favorite 4 letter word".
I never actually based my decision on that one, only the technical questions.
This is an example of where I (probably) contributed to making some people feel uncomfortable and I wouldn't do it now.
If you answered that, my past self would have appreciated your answer and maybe even stopped. I mostly got things like: "code", "cash", "love" and one time a "fart"