An interlocking puzzle, also known as a JIGSAW puzzle, is a type of puzzle in which pieces of varying shapes and sizes are put together to form a complete picture. The pieces are usually made of cardboard or plastic and have interlocking edges that fit together like a JIGSAW. The objective of the puzzle is to arrange the pieces so that they form the desired image. Interlocking puzzles can range from simple two-dimensional images to complex three-dimensional models. They can be used as a fun activity for children or adults, and can also be used to teach problem-solving skills.