I found things to be easier if I first contemplate why people ask the question in the first place and then reply to the reason of the question, not the question itself. People ask questions they don't require the answer to(for instance, there might not be an answer) for all kinds of reasons; trolling, 'just making conversation' etc. Depending on the reason and if you have time / want to indulge you can go after the real intent. If someone trolls you can have good shouting matches (which I enjoy now and then), if just making conversation and the question might be laden, you can change the subject that wasn't the goal of the conversation anyway.