I'm reasonably sure you can, reportedly 1% of bills currently produced are $2.
http://en.wikipedia.org/wiki/United_Stat...
See if it has any additional collectable value...
Yes, if it's legal tender. In fact, I just got a real one today, for free in the mail.
I don't think anyone will accept it because they might think it is fake. So, I would reccomend checking it with the bank.
yes
yes it is legal tender
