Thankfully "show how clever you are" questions seem to be way less common than I thought before I started speaking. Plus I think the audience can tell the difference.
Replying to @DrEugeniaCheng
I have taken to starting Q&A sessions by saying that there are two types of questions: the ones where you want to understand something and the ones where you want to show how clever you are, and I will take all the first type and none of the second type.
