english grammer

a. Which part of the world do you come from?

b. What gifts did you get on your birthday?

c. Whose books are those on the table?

d. Which game are you best at? asked Raved.

e. Whose book is that lying on the table?

f. What crime has the prisoner committed? asked the judge.

In a, which qualifies the noun part and also asks a question.

In b, what qualifies the noun gifts and also asks a question.

In c, Whose qualifies the noun books and also asks a question.

In d, Which qualifies the noun game and also asks a question.

In e, Whose qualifies the noun book and also asks a question.

In f, What qualifies the noun crime and also asks a question.