The math problem that stumped thousands of mansplainers - Vox

This statistics problem went viral in 1990.

Monty Hall Problem (AKA Survivor Do or Die Twist) - I Get It Now

Estelle Caswell Profile and Activity - Page 7 - Vox

Why Common Core math problems look so weird

Monty Hall Problem - Puzzle That Tricked Math Experts

Estelle Caswell Profile and Activity - Page 7 - Vox

Thousands Stumped by Simple Math Problem, Goes Viral

The Let's Make a Deal Paradox Part 1

The Monty Hall Problem

Penn and Teller: The Josephus Problem

The World's Most Famous Math Problem: by vos Savant, Marilyn