Think_Mine_V2.zip is a release file of the Minecraft map Think Mine V2 Puzzle Map, made for Minecraft 1.5.2. It was published on May 20, 2013 and is 1.1 MB in size. For the full description, screenshots and every other version, visit the Think Mine V2 Puzzle Map map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.