Amazon Software Engineer interview questions

I was contacted via LinkedIn for a special recruitment in my country (Mexico). I was asked to submit my resumé and they sent me an email with the schedule for my interview. They told me that they wouldn't go further with my application that same day. The process was pretty fast, about 5-6 days from the day I was contacted through LinkedIn to the day I was rejected.

Group interview, not really hard, with 2 other candidates. Each got a part of the project to complete individually, last for a day. The first part is group discussion for an hour and interviewers will come and ask question. Then each of the candidates will assign a part of the project and do it all by ourselves. There will be 2 individual interview during afternoon, all the question is about the project you a dealing with. Nothing about your personal experience or something in the resume.