Microsoft Senior Software Developer Engineer interview questions

After initial screening interview, I was invited to a full day of interviews on spot. It took place on a working day. I was interviewed by 5 people. I found this all being way too much for one hiring process. The interviewers were very nice though and I had a lunch with local manager. Most of interviews were standard engineering questions. Last interview I personally completely disliked, because it was not so much of a technical one, but obscure task that had no right or wrong answer.