HR math + 2 rounds of Technical by trader; last round interviewer did not open camera and gave a formulaic wise difficult problem (told me no trick behind & purely testing if you can list out all possibilities carefully)

Had an OA but I thought I didn't well but I passed. I think I got lucky cuz I didn't cheated. Just don't cheat, there is no point doing that. First and second round the interviewers were all nice and the problems were very interesting and thought-provoking. Had a good experience with the five rings.