1
It is used for asking about choice
2
it is used for asking to ask who owns something.
3
It is used for asking in or at what place or position
4
It is used for asking about time
5
It is used for asking for information about something
6
It is used for asking about manner or about condition or quality.
7
It is used for asking for a reason.
8
It is used for asking what or which person or people (subject)
