The initial idioms of the letter W

who am I kidding	who's (someone) when (he's/she's/they&
who are you, and what have you done with (someone)	who ate all the pies
who calls the shots here?	who cares?
Who would have thought?	who died and left you in charge
who died and made you boss	Who died in here?
Who do you think you are?	Who do you think you're kidding?
Who do you think you're talking to?	Who do you want?
Who in the devil?	Who in the hell?
Who's there?	Who is this?
Who knows?	who knows what
who needs	Who needs it?
who shot John	Who the deuce?
Who the devil?	Who the hell?
Who was it?	who wears the trousers?
who would have thought	who writes this stuff