Why the heck does 'score' mean 20? How we subconsciously know how to pronounce different plurals.

929. While we were looking into why we use the word "score" to mean "twenty," our minds were blown by how many languages still have remnants of a base-20 counting system. And then we learned the secret rules that explain why some plurals end with an "s" sound and others end with a "z" sound. It was quite a week!