It doesn't signify anything. I think you might be giving a bad impression of your company by asking that question. In an interview, you have a limited amount of time to come to a judgment about a candidate. Using that time to ask pointless and borderline flamebait questions is going to be a red flag for a lot of candidates. You are also going to put candidates on edge by making them worry about whether or not they have given the "right" answer to a silly question.