Lets give Mowl a 2 day chance before we answer. He'll work it out in gig timePlenty. But here's a fun one that touches on what we were discussing
i.e. using abstract concepts to solve real world problems.
You can solve it using "real world" math logic.
But you can solve it easier if you use something else!!
"Five men and a monkey were shipwrecked on an island. They spent the first night gathering coconuts. During the night, one man woke up and decided to take his share of the coconuts. He divided them into five piles. One coconut was left over so he gave it to the monkey, then hid his share, put the rest back together, and went back to sleep.
Soon a second man woke up and did the same thing. After dividing the coconuts into five piles, one coconut was left over which he gave to the monkey. He then hid his share, put the rest back together, and went back to bed.
The third, fourth, and fifth man followed exactly the same procedure.
The next morning, after they all woke up, they divided the remaining coconuts into five equal shares. Again just one was left over which they gave to the monkey.
How many coconuts were there in the original pile?"