I like Rubik's cubes. I have about 40 of them. I learned to solve the 3x3 using basic… Nakatoshi · September 25, 2026 I like Rubik's cubes. I have about 40 of them. I learned to solve the 3x3 using basic algorithms when I was young, and no matter how much time passes, I never forget how to solve it; they're great for your memory!