“Money, money, money! It’s a rich man’s world”, ABBA sings. But even the rich can’t avoid the fact that money is not all it seems.

Consider this: Is a £100 always worth a £100?

Face value is what it says on the tin. “Worth” is what you can buy with it, i.e. how full is that tin? Sounds obvious, but do you really appreciate what this means? Take this quiz to see.