The Definitive Four Fours Answer Key https://dwheeler.com/fourfours/

> Note that these are large files; both are over 1.6 Megabytes, so don’t load these if you have a slow Internet connection

Just shows how far internet speeds have come...

That's how I learned about false induction. I also liked the one about the men who were lined up and had something on their backs and they had to guess what it was.