Microsoft Software Developer Internship interview questions

First round was online on codility, you're given 4 tasks and 3 hours to solve them. After that,secound round consists of 3 interviews, each 45min long. On each of them you will be speaking with engineers from different teams.

First, I had 1 Skype interview, afterwards there were 2 technical interviews (sometimes a third interview is added). No HR interview before nor after the tech interviews. The Skype interview was from a central HR division based in Warsaw