It means he wants to know if you like him because he likes you.
They probably Like you!
it obviously mean they like u!
If he asks you that it might mean that he's interested.....
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 he likes you.
it possibly means that the girl likes YOU!
If a guy asks you how you sleep it means that he has strong feelings for you and is trying to get you to like him.
that they like you and want you to say i like you to back
Not necessarily
If your ex asks you if you still like them, this might mean that they want to get back together. They may also just be asking to boost their own ego a bit.
It means that he wants to know if you like burritos.