Buy Puzzles for Seven Year Old's and up! We stock a range of fun puzzles for ages seven and up. Puzzles build a number of important skills in children and offer a fun and engaging screen free alternative. Some of the skills include planning and strategizing, problem solving, hand eye coordination, pre-reading, midline crossing and more! In general seven year old's can do puzzles with 100-200 pieces and as the age goes up, the number of pieces generally increases as below: