well most the time you probably shouldn't because if they do, then its really embarrassing and could hurt their pride I know it sounds weird but its happened to me before
it is personal.
No, it is not. In fact, some boys will prefer you ask them if they are too shy to ask if you like them.
It depends how you ask him. It is okay to ask him if there is a romantic moment, but it is not ok if you are trying to ask in a rude way.
Yes
Yes, that question is personal.
ask them. or get someone you know to ask them
Tell her you have feelings for her and you did not want to be too abrupt because she was so intellectual and attractive that you did not want to be rude by being over confident ...
no, ask yourself!
If they want you to know, they would tell you.
No
Ask someone to ask him about you.
Ask the girl that she likes you or your friend