A puzzle square is a fun and challenging brain teaser that consists of several small plastic pieces that fit together to form a larger square. The pieces are usually of different shapes and sizes, and the goal is to arrange them in the correct order to create the complete square. Puzzle squares come in a variety of difficulty levels, from simple and easy to complex and challenging. They're a great way to exercise your mind and improve your problem-solving skills, and they make a fun and engaging gift for people of all ages.