0 used especially in questions when asking about which person owns or is responsible for something:
1 used for adding information about a person or thing just mentioned:
Fraud detectives are investigating the company, three of whose senior executives have already been arrested.
They meet in an old house, whose basement has been converted into a chapel.
There was a picture in the paper of a man whose leg had been blown off.
Cohen, whose short film won awards, was chosen to direct the movie .
2 used to ask which person owns or is responsible for something, or to say who is responsible for something:
You can't sit on the fence any longer - you have decide whose side you're on.
There's no profit to be gained from endlessly discussing whose fault it was.
It's very difficult to integrate yourself into a society whose culture is so different from your own.
It's an Australian company whose logo features a red kangaroo.
The scheme is designed to help children whose parents have fallen on hard times.
Whose are these shoes.
