Do Not Pay Any Less, Mrs Mess Puzzle
Mrs Mess was buying a set of garden furniture. The bill was seventy dollars.
She gave the attendant what she thought were two $50 notes, (actually two $100 notes).
The attendant was sleepy and didn't notice either, so he gave Mrs Mess what he thought were three $10 notes (actually three $50 notes).
Who ended up better off than they should?