If you were still married at the interview date, and are no longer married, the answer is yes. If you were not married, but now are married, the...

The Child Status Protection Act should protect you from aging out since you were under 21 when your parents filed.

It may indeed be hard to prove your non-immigrant intent if you are married to a U.S. citizen.

This is a question of Mexican law, you should find a Mexican lawyer.

A visa is a document that gives you permission to enter the U.S. If you have maintained F1 status, then you are an F1 even if your visa is expired.

You need to hire a lawyer to unexpunge the record, or get proof it cannot be unexpunged.

It should not prevent you from completing your oath ceremony as long as there is no issue of interrupting your continuity of residence.

If you are not out of status, there should not be a problem to get an H1b. You may need a new employer if you are going to be filing for a STEM...

Local practices vary. You should not have to refile but that may be the only way for USCIS to acknowledge and process your application. Speak...

You could apply for asylum in the U.S. if you can prove you are in danger of persecution.