Asking relevant questions at an interview is a good idea, but I've noticed that a lot of technical interviewers ask questions it took them weeks to understand and fix when they use this approach. Understanding a problem is often more difficult than solving it ... knowing that the interviewer understands the problem and constraints is even more of a challenge.
I once had an interviewer give me the kobayashi maru without telling me. I thought the guy was a jerk. He could just have pulled a gun on me and demanded my wallet if he wanted to judge my personality. I declined the second round.