There are brain puzzles caches in my area, I have figured a few out, but there are some I said the heck with it. I would rather be caching outside, then sitting inside banging my head on my desk, or surfing the net for a formula to solve the puzzle.
We also I have a cacher that seems no matter were you are in the state, you can find one of his caches. So that only means there are a lot more caches to find.
Remember we are all metric sockets, in a standard world!
Fireman121
Coon Rapids, MN