I have the same problem. I couldn't think of these things on the spot for the life of me. So awhile back I googled 'Top Personality Questions on an Interview" a

I have the same problem. I couldn't think of these things on the spot for the life of me. So awhile back I googled 'Top Personality Questions on an Interview" and filled out prompts for each question way in advance, and then I review it each time before right before I go into a an interview. Made the rest of the process much simpler.