Mechanical puzzles are usually self-contained objects, consisting of one or more parts. These puzzles present the player with a problem that can be solved by manipulating the pieces and using logic, insight, dexterity, or reasoning. There are numerous types of mechanical puzzles, including Impossible Object Puzzles, Japanese Puzzle Boxes, Secret Puzzle Boxes, Escape Room Puzzles, Geometry Puzzles, Brain Teaser Puzzles, Disentanglement Puzzles, Interlocking Puzzles and Puzzle Keychains. They all come in varying degrees of difficulty, so players of all ages can find a whole slew of mechanical puzzles to enjoy.