Puzzle

Ten Penny Puzzle - https://youtube.com/shorts/XzpPkJk_nOY

Remove the coin - https://youtube.com/shorts/69Ff3bwpyVA

A Maths Puzzle: The Missing Square Solution https://www.youtube.com/watch?v=Rzzct1We-38 - Via: https://x.com/wonderofscience/status/1852851061088043509