I recently gave amazon OA via hakcerank platform .
Question 1
https://leetcode.com/problems/robot-bounded-in-circle/
Question 2
I couldn't find the exact question, but found a interview already posted here.
Similar to this post : https://leetcode.com/discuss/interview-question/989768/Amazon-or-OA-2020-or-Transaction-logs
Both were looking like Medium problems.