[rjw]

Among the five questions below are two (questions) where the auxiliary verb and subject have been inverted to make the question. I think the questions are 4 and 5.
But I'm not sure why or how they have been inverted!
Could someone please explain the rules to me?

1 What don't you like about your personality?
2 What makes you depressed?
3 When did you last cry and why?
4 Who would you most like to say sorry to?
5 What song would you like to be played at your funeral?

Thanks in advance.

RJW