Amazon Software Development Engineer interview questions

How did I deal with a situation where I had problems solving a certain exercise?

5 Coding questions were asked. 2 in Round 1 and 3 in Round 2. All were of easy/medium difficulty. One other question during the technical interview was to list down 2 instances of coming up with a non-trivial solutions during Technical Projects/Internships. The HR round was basically to analyse the approach one opts for during Tech blocks. Seemed trivial. For e.g. - Tell me about a risk you took during any endeavour, where you had the option of not taking it but you went ahead with it.