Office based rant !!!

Why do people ask stupid questions that they do not expect you to know the answer to? Is it to prove that you do not have superior knowledge? To make you look silly? It happens more often in the workplace than anywhere else so maybe it's a power thing. I don't do this. If the only way to prove your position is to belittle someone else then you cannot be very secure in your own abilities. Maybe people within my office should take note as this week has been full of conversations involving those dumbass questions.