Amazon Area Manager interview questions

I contacted a military recruiter at Amazon.com through LinkedIn.com. He was excited about my background, and gave me the impression that I was a sure hire. I had a phone interview within 2 days of speaking with the Amazon recruiter, and progressed to the onsite panel interview. At the onsite interview, I was greated by a lady who gave me two problem scenarios to work through stating I had 20 minutes to complete them. After 50 minutes, I was taken on a walk-around tour of the warehouse by another supervisor. Following the walk-around, I was interviewed by two different supervisors. I had to present my solutions to the problem scenarios and answer typical questions. One week later I was contacted by another individual stating that they decided "to move forward with other qualified candidates such as myself".