Are These Good Finds?

I used to work as a bank teller and would sometimes get in unusual money. I tried to purchase or rather exchange them for my money when possible. That is how I came across these. The $2 note is not in great condition, but an interesting bill. The $20 note is in perfect condition. It had just come in from the mint and was not yet circulated. There were several in the pack that were smeared like that. It looks like it was packed before the ink dried. There are some small spots on the front near the signature in addition to the smear on the back. The last note, the $1 note is in excellent, but not perfect condition. Can anyone tell me if any of these hold a value, more than the face value?