Amazon Software Development Engineer interview questions

Amazon had hiring event in my town. They contacted me via LinkedIn couple of weeks (I think it was around 8 weeks) before the on-site interview was being held. First, I solved two coding challenges online and then had on-site interview. On-site interview was actually 5 different interviews - 1 hour each. There were also 5 different interviewers. At the end of each interview they had one or two questions regarding social skills and then 5 or 10 min for my questions.

Written test with 3 algorithm problems Followed by 4 rounds (DS & Algo, Problem Solving, Design, Bar Raiser) DS & Algo, they asked to implement queue using a stack followed by finding the height of a BST. Problem solving involved some questions related to fibonnaci series. Design round they asked me to design a content scraping solution which validates content across devices. Bar raiser was a cocktail round having a mix of everything, Your personal achievements in the technical side, a 'check if one tree is a mirror of the other' kind of question. The final round was with the Hiring manager, he also asked me some questions related to arrays like find the maximum increasing sequence in an array.