Keep basic probability in mind. No one is going to have a good answer to every question. I'm serious about that. Look at other answers suggesting giving everyo

Keep basic probability in mind. No one is going to have a good answer to every question. I'm serious about that. Look at other answers suggesting giving everyone a veto. Let's say you give five people time to ask two questions each. Even the best candidates are going to randomly fail because someone will veto them for getting one of their two questions wrong. Would you be okay hiring the first candidate? If not, plan out what you're okay with.