Who
Who’s your friend/principal/he?
Who’s your math teacher?
Who are you?
Who has a birthday in October?
Who is taller than you?
Who is heavier than you?
Who’s that woman?
Which
Which floor?
Which is mike’s times table?
Which season do you like best?
Which season does Zhangpeng like best?
Which monkey do you like?
Which monkey is stronger?
Whose
Whose is it/this/that?