The phrase "trick question" means a question that is designed to confuse or deceive someone, usually by having a hidden or unexpected answer. Full definition
It covers the basics but watch out, there are a couple of trick questions in there. (moneysense.ca)
«I don't ask trick questions on things like curb weight or fuel - tank capacity,» he says. (wardsauto.com)
Working on how you answer trick questions in a department store associate interview is probably what is going to save you from embarrassment, when you are sitting across from an interviewer. (coverlettersandresume.com)