If returning by land, you will be OK.
I guess you mean "passport". No, without a valid passport you cannot leave Mexico.
You only need a valid passport to enter Mexico.
A valid US passport.
You only need a valid passport.
Yes. You always have to have a passport that's valid past the return date when leaving the US, since you can't enter the US without a valid passport.
As long as you have a valid passport and you are not on the Interpol 'lookout list', you should be fine.
Any kind, as long as it is a valid passport. Don't forget the visa, which has to be processed on the US Embassy (Mexico City).
You should be OK, if you have a valid passport.
Yes. All you need is a valid passport.
as long is the passport is valid u ccan go anywhere, i am not sure what will happen if it expires while u are out of country though
Yes.
No.