Amazon Software Developer Engineer Internship interview questions

A set of 4 programming challenges, all progressively harder. Each programming assignment was just pass/fail. If you failed you probably weren't going to move on to the next one. I failed on the 4th one due to my lack of regex experience. Not a huge fan of this format, as I was essentially disqualified by an inadequate understanding of regex, which I seldom use anyway. However, I can see how this would weed out a lot of the online applications they get online.

I was emailed an assessment a couple months after I applied. In the first part, I was given 7 code snippets that I had to debug in order to produce the desired output. This had to be done in about 20 minutes which wasn't nearly enough time. For the second part I was given 25 multiple choice questions which had to be done in about 30 minutes. These questions were similar to IQ questions.