Microsoft Software Developer interview questions

The last round of interviews consisted of four interviews, each one of them was trying to analyse a different topic as: data structures knowledge, problem solving, past experience and learnability.

phone interview and then 2 interviews in the office with a break of an hour in between. the first one had 3 logic questions. find the nth element from the end in ll. compute "10*3-8/4" the second asked me about finding if the nodes in tree are father and child and architecture question about whatsapp