in this type of questions we are using ( misin, miyiz, misiniz, müyüm, mü, mısın, mısınız, müsün, müsünüz ) some questions end with ( mu ) and some end with ( mi ) and some with ( mı ) and some with ( mü ) how can i differentiate between them and how to know which one am i going to use in the question !!!
This suffix uses 4-way vowel harmony. In this post, you can learn a little more about when you would use which version of the suffix: https://www.duolingo.com/comment/9041808
The suffixes that you see with the accusative are the same with you use the question particle -mI :)