10. Currency swap scam
This one requires that a con artist has something to sell, such as souvenirs, but it works like a charm. They fool you by giving you money which only resembles the currency of the country. For example, Russian ruble and Chinese yen look alike, but one is more valuable than the other. This basically works because people are too much focused on the banknote number, not the exact looks of it, making this one of the easiest scams to make money on the street.
Pixabay/Public Domain
