I personally don't think this post is a serious compilation of question that get asked at Amazon considering the stature of the company nevertheless i think an interview at amazon will never be complete without rigorous test of candidates problem solving skills and/or the specific capabilities that he is applying for. Also the kind of questions that are mentioned in the article are the kind of questions HR's ask to confuse the candidate and the sole purpose of these questions is to check the candidates presence of mind and how he tackles those questions.IMHO Amazon is a great company to work at there is no doubt in that.