An old chestnut, but fun just the same. I was reminded of it by
http://www.mindbreakers.com/mb/mystery1.htm
You go to an old fashioned general hardware store to buy something.
When you get there you find that 1 costs £1, but for 12 you'd only have to pay £2. Even more mysteriously, for 144 you'd only be charged £3!
How much would you have to pay for 96?
What are you buying?
Answers in
please.