That's such a loaded question, though. It is completely open ended. Will they be judged on the difficulty of the question? Their ability to answer it? Is it

That's such a loaded question, though. It is completely open ended. Will they be judged on the difficulty of the question? Their ability to answer it? Is it even emphasizing the right area for this interview? I strongly believe the candidate should be given every possible direction on what they are being judged on. I'll ask, "What are some of the things you look for in a code review?" If they hesitate or seem unsure about how to answer, I'll help them out with "What are some of the things that will get a PR rejected?" From there I try to open it up to a conversation rather than getting them to list the "correct" five things to cover in a code review.