"It some times mean he likes you or he is nosy and he like going in to your business"... No. First part is MOST likely the only reason. He would only be nosey BECAUSE he likes you and wants to be sure he has a chance.
They like you
It means he likes you.
that they like you and want you to say i like you to back
they are eather nosy or like you
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.
his friend wants to know if you like him
That can mean they like you or they heard a rumer you liked him and he wants to find out for sure.
A lot of the times yes, but it doesnt really mean anything.
He is worried about you.
it could mean anything but if a guy asks me tht it would be just like a question it depends on how the guy asks it
Usually it means that he wants to find out what you like, so he will have somthing to talk about with you. :)
Red