If you are asking questions which can be answered by Chat-GPT, maybe you are asking the wrong questions.

GPT is a tool which can legitimately be used to do your job.

There are so many things that GPT can't do: take decisions, find the best approach to talk with a human being, resolve conflicts between two members of the team, and last but not least explain why of a certain solution.

Is it a coding test? Pair with the candidate. See how they think. Ask yourself: would I enjoy working with this person?

And make your own decision.