I would add questions where answers can't be found easily by searching or on stack overflow. If the answer is found in the first search result, then I don't see

I would add questions where answers can't be found easily by searching or on stack overflow. If the answer is found in the first search result, then I don't see the point in checking if the interviewee has memorized it. Add questions that should lead to discussions and show general knowledge. I would add a section for small, interesting coding challenges.