No, because in many of these cases the rejection of valid answers demonstrates that the person is coming with a preconceived “answer” and not really being honest and objective.
If the person is unwilling to reconsider his preconceived notions, it’s futile to try answering.
A moshol: Someone asked me why when he pours water into a cup it takes the shape of the cup. I tell him because it’s a liquid, and that’s how liquids act. He says, no, water is a solid, so my question is valid.
Once I understand that he’s working on false assumptions and won’t be budged from them, I consider answering any further such questions to be futile.