Amazon Manager, Software Development interview questions

I was reffered through my friend who had joinned Amazon. It took me two months to get the interview but once it got the call rest of it was on fast track 2 rounds of telephonic Starts from basic programming Coding via online tools then F2F I decided not to take it forward as i had got another offer by then

No phone conversation with recruiter. No recruiter contact at the beginning or end of the interview. Had one informational interview via phone. Had one phone screen via phone, had one in-person with 5 interviewers over 5 hours. The interviews focused solely on behavioral questions. Between all 6, none ever accepted my answers at face value and continued to dig and probe, always repeating what I said, but incorrectly, and asking me to elaborate again. It was almost as if they were intentionally repeating it wrong in order to elicit a reaction. I was not asked a single coding question. I was asked if I was familiar with the product, to which I answered in the affirmative, but there was no probing.into what I had done with it. I got the impression that if I knew nothing about it, it would not have mattered. As of this writing, I am still waiting to hear back. I also had to write a 4 page report detailing the invention I was most proud of.