In a way, I agree with your son on that one. If it was a class discussion, I think that admitting you don’t know is better than bullshitting. But on a test it was some kind of discussion question designed to either test the student’s thinking abilities or their ability to parrot back the answer the teacher or the book said. In this case, it was a “failure to communicate” moment (movie “Cool Hand Luke”). Frankly I think the teacher failed this one.

If my kid said that, I would laugh and give him props, then tell him to answer seriously as well

so what? kids try to be funny, it's just how it is.. adults try as well.

That kids going places, not college but Places.

I'd like to shake your son's hand

That seriously made me laugh out loud 🤣🤣

He has a point. It's a tricky question.