When asking what you would do if you could relive your life, the interviewer is looking for a flaw in your interview. Always remember, the goal for the first few interviews is to get the next interview. For the interviewer, it is to weed out as many applicants as possible. Here’s where a personal answer could work.
　　Personal Answer
　　I lost my mother to Alzheimer’s. I wish I’d known more about the disease to help me through that difficult time.
　　Non-personal Answer
　　Really, nothing. I’ve learned from each experience I’ve had.