Is there a way to get the student discount while ordering tickets online?

No.

No, you have to go in

Don't know the answer to that

Just go on Wednesday. I think it's $6.50 all day.

You would need to purchase a third party dicount ticket from like Fandango etc. They do offer discounts at the door on certain movies. It all varies.

There should be that option. Don't know for sure cause I don't get my tickets online.