NO
yes because it has not expired
No, you cannot. Passport must be valid.
NO.
If you only have expired passports, you cannot travel internationally.
I think so . My Mom did that and she got her new one in the DR :)With the cost of airfare these days, it would be well worth updating the passport before you leave.
in order to leave or return the US you must have a passport.
No , you do not need a passport unless you are leaving the US.
You may eventually, but after tons of trouble you will encounter in the US.
You must always use a valid American passport when entering and departing the US even if you are a dual citizen.
Yes, but you will not be able to reenter the US without a valid passport. (source below)
Yes, in some cases. Many US customs agents only ask for U.S. identification, if you're driving or walking across the border. Since a passport is only ever issued to a citizen, an expired passport would be rebuttable proof of citizenship, which is better than having a driver's license (which can be obtained by a resident alien, in some states).
I'm sure it's possible. I'm also sure it would be a great deal of trouble. Yes, I returned from Mexico on a passport that had expired 7 years prior. Not only did the accept it, they stamped it.