I think how hard something is cannot be easily understood by a non-very-senior engineer without context. I had a very good experience when interviewing at Faceb

I think how hard something is cannot be easily understood by a non-very-senior engineer without context. I had a very good experience when interviewing at Facebook except for the part where they ask you this question. Either they were asked to respond rudely, or they really didn't think anything outside of adding stories to things was interesting/difficult.