I was once asked what's my favorite starter Pokemon in some specific edition of the game. I was baffled to put it mildly. Some other guy from the team jumped in and pretty much said "disregard that question"
The point of questions like that isn't necessarily to ascertain the actual answer; it can be used to engage the interviewee in conversation to see how they think and communicate, or how they react to minor curveballs being thrown at them.
You've got 30-45 minutes with the candidate. Is this question the best use of that time?
It sure is, if that's what I'm trying to find out. You might also think it would be crazy to base a hiring decision on whether the candidate was rude to their airport shuttle bus driver, but that strategy famously worked out well for Zappos: https://www.businessinsider.com/tony-hsieh-zappos-hiring-str...