Example: Whose watch is this? (Linda) This is Linda's watch

Whose books are these? (the pupils)
Whose house is this? (John)
Whose offices are these? (the bankers)
Whose flowers are these? (my mother)
Whose translation is this? (my friend)
Whose shoes are these? (my sister)
Whose stamps are these? (Ted)
Whose fields are these? (the farmers)
Whose discovery is this? (Newton)
Whose duties are these? (the pupils)
Whose words are those? (our teacher)