Mathematical Puzzles Courses
World Science Festival via YouTube Thinking Outside the 10-Dimensional Box - Visualizing High-Dimensional Spheres
3Blue1Brown via YouTube Blet, a Mathematical Puzzle - Fernando Rodriguez Villegas
ICTP Mathematics via YouTube This Function Knows Your Phone Number
Michael Penn via YouTube Feynman's Famous Long Division Problem
Michael Penn via YouTube The Hydra Game - Hercules vs the Mathematical Monster
Numberphile via YouTube Impossible Dutchmen's Wives Logic Puzzle
MindYourDecisions via YouTube Murderous Maths - An Interactive Look at the World of Mathematics
Isaac Newton Institute for Mathematical Sciences via YouTube Exploring Quadratis Puzzles
NCCR SwissMAP via YouTube A Nice Geometry Puzzle
Michael Penn via YouTube