Looking for some good Puzzle Maps

Well, I'm looking for a few good puzzle maps to attempt. I tried a few a while ago, and they were very difficult to complete. Preferably, I want a somewhat easy (not too easy) map that doesn't require much jumping but is still creative. Just give me the links, and maybe give me a quick description of the puzzle.

Also, are there are co-op puzzles, I would like to try one of those too.

 

Thanks, I'll try them out. I all of a sudden want to play some puzzle maps.