Составить 5 вопросов к предложению most of the universities provide hostels for their students

1) Do most of the universities provide hostels for their students?
2) What do most of the universities provide for their students?
3) Most of the universities provide hostels for their students, don't they?
4) Do most of the universities provide hostels or flats for their students?
5) For whom do most of the universities provide hostels?