what are these worth

Those are some nice notes. It looks like some are heavily worn too.

You'd have to list them all by country, year, denomination, and grade to really figure out what they are worth.

The ones with a bend to them look like they were stored in a wallet. It is best to store them somewhere flat, like in plastic protective holders for paper money, if you are looking to get more than face value for them, in the future.

This site will help you determine their country:
http://aes.iupui.edu/rwise/

I've had a quick look but I didn't see anything particually rare or valuable. Most banknotes are surprisingly cheap to purchase. The Bulgarian note (set 3) and the notes from Tiawan and Indonesia for example are valued at less than £1 each.