Видео с ютуба Mathematics Challenges

The Simplest Math Problem No One Can Solve - Collatz Conjecture

The hardest problem on the hardest test

The unexpectedly hard windmill question (2011 IMO, Q2)

Math's Fundamental Flaw

Terence Tao: Hardest Problems in Mathematics, Physics & the Future of AI | Lex Fridman Podcast #472

7 Hardest Problems in Mathematics Today - Each Solution Worth $1 Million

Tips to be a better problem solver [Last live lecture] | Ep. 10 Lockdown live math

USA| A Hard Algebra Olympiad Math Problem| Only Genius Can Solve This| Can you solve this?

Solve This Mathematics Problem and Get 1 Million Dollars