[PeterGriffin2]

I answered 0 gallons of milk, because I don't believe in cows.

Kidding aside, I get your frustration. Trivia questions by necessity have the format of "one short question" = "one short specific answer".

Real facts usually don't work this way. Historians argue or change the date of various historical events over time as more data emerges. The Solar System "lost" a planet few years ago, and so on. "Facts" are in constant flux.

There's also a complicated, detailed context, there are a lot of "depends" in a real answer. Say, "how fast a horse runs"... domesticated & trained or wild, what breed, on a road or on a meadow, with horseshoes or without, etc.

So when faced with trivia questions the last thing I could say is I feel "overconfident" answering. Especially when the answer is a number. The designated correct answer is just an arbitrary data point that the author stumbled upon earlier in a book or online and wrote down as the answer.

It's apocrypha masquerading as facts.