Got impression that people check your answers based on some templates. Many of them generally good educated, by you will definitely will fill like of experience. That not surprising, for many of them MS was the first and only employer. There are many question which will from you university course of Informatics, so worth to renew that knowledge. Many puzzles, and mostly of them you can find in internet. Nothing difficult, just good exam on things which you will never use in real life.