Amazon Customer Service interview questions

I attended interview at Hyderabad. First two HR people came and introduced themselves. They put some fun games to remove tension among the candidates .Then they called into A room. They first ask us to register us on a site. Then They show some videos of Amazon company. HR asked everyone to speak for 30 Seconds any topic . I don't understand how can she evaluate a person in 30 Seconds. She would have given atleast 1 minute.I didn't qualify for next round .So I don't know about remaining rounds. 30 Seconds is very little time to judge A person. She is not even seeing candidates. I guess she selected on basis of resume.

1 round that is hr round Interviewers wait outside for 2 hours and after calling for interview they ask me only one question that is whts your highest qualification I answered that After that they told me to wait for 2nd round in 2 round they told me that sry u r not selected i ask may I know the reason. She told me may be your communication skills now think again she ask me only one question what is your highest. So I answered that is bsc it after that she didn't ask me anything I mean wht the ...