I have these sentences (both of them are in a book series, and are written by Indian):
1)Which football team wins the game?
2)What materials are used to make it?
I wonder if they are grammatically correct? I think "what" and "which" in this case are interrogative adjectives. I have got some similar sentences on various websites, but I'm still not sure:
a)Which coat is Paul’s?
b)which book belongs to you , this or that ? (This one is from a Vietnamese's website, it says that "which book" plays subject role) Hope to receive your help. Thanks a lot!!