Interviewers seem to be out to trick you at something, or else to prove how much smarter they are than you. I'm sure there is a lot of that out there, but that

Interviewers seem to be out to trick you at something, or else to prove how much smarter they are than you. I'm sure there is a lot of that out there, but that is definitely not my reason for asking hard questions. We will always be interviewing at least a few people to fill a position, I think that's natural. Suppose I ask you and the other candidates questions... and you all get them all right. Well, that's fabulous, but now I have no way to distinguish which of you actually knows more about a particular subject. And I think it would be stupid for me to ask the interviewees to answer questions to which I don't know the answers. So we're always going to be in a situation where I'm asking you at least some questions that you don't have the answers for. I need to test your limits, and see how firm a grasp you have on various subjects.