Amazon Area Manager interview questions

Met with a representative at a college career fair, they offered me a phone interview the next day. The phone interview was about 30 minutes and covered basic behavioral and situational questions. At the end of the phone interview they said that they were very impressed and wanted to move me to the next round. Within a few days I received an email about traveling to a near by fulfillment center on that coming friday. Once at the facility, we took a tour of the warehouse which was followed by four 30 minute interviews. One interview was based on a math question we were required to complete, two were with operations representatives, and the last one was with a human resources representative. Everyone throughout the processes was extremely nice and accommodating. The following monday I received a call from a recruiter informing me that I was not a good fit for the area manager position.

First round was Resume Shortlisting. Selected. 1st interview, Technical questions related to mechanical. Lasted for 20 minutes. 2nd interview, Simple Puzzles and few analytical questions. Lasted for 30 minutes. 3rd Interview, Why Area Manager? Career plan?