J.P. Morgan Quantitative Researcher interview questions

Very long! 5 interviews without a break, but everyone was super kind and I really enjoyed the process, they interviewers are really sympathetic. Regarding hard questions, I asked for hints and I always showed I wanted to know more and more.

Very bad process. The interviewer did not ask any techincal question and gave false/dishonest feedback to HR. I gave them feedback saying so. The interviewer was too junior and seemed lacked skills himself. He had not worked on many techniques which I mentioned and did not seem to understand.