that may mean that he likes u
or that he is helpless or needy
He wants you to get him something.
she's interested in you
That means he girl likes you and answer that question by telling the girl something she likes to do. If you don't know what the girl likes to do then you're a goner
I'll bet he means "are you busy? if not, we should do something."
She wants to talk to you, probably.
it probably means she likes you and you should say something to her
No. It means she thinks you are nice and maybe even smart! But if you are a boy, it MIGHT mean something more. Go for it.
No, because what if the boy asks a guy and what if the girls asks a girl? So the answer is no, but it depends on how the person will look when asking the question.
They like you
It means she doesn't know who she is to you.
Shes in to you
it possibly means that the girl likes YOU!