Personal opinion but I think "how many ping pong balls can fit in a school bus" is not that bad. I've asked HR people why they ask that question, and it was no

Personal opinion but I think "how many ping pong balls can fit in a school bus" is not that bad. I've asked HR people why they ask that question, and it was not to have a correct answer but to demonstrate your train of thought. When I give a coding interview, I will use more development oriented questions but I want to see HOW they get to the answer, not the fact they memorized an algorithm that just so happened to be on the coding test.