Ever try to solve a Rubik’s cube? It looks deceptively simple but is actually incredibly hard! If you are interested in learning, you have to memorize the steps and algorithms which are guaranteed to solve the cube each time. Watch the videos here to get started: https://www.rubiks.com/solve-it/3×3/
My son (who is way smarter than me) has memorized the steps and it’s amazing to see how children are so much faster in learning new things than grown-ups. I have tried multiple times and have learnt the moves for the first two layers but keep getting stuck on the last layer.
Here is a video of him solving the cube in less than 150 seconds! The first 30 seconds or so are him scrambling the cube and then the rest of the video is the actual solving part.