Want to find out someone’s native language? Ask them how many fingers they have

Wrong. Every native English speaker I know would answer 10 fingers.

Conceivably, if asked as a science question:<p>"How many fingers does a gorilla have on each hand?"<p>One might hear, in English, "Four fingers and a thumb."<p>Otherwise, as a native English speaker, when asked "How many figures do you have?" I'm answering "ten".

As a native English speaker my answer would be ten. Second most likely would be five. I'd be unlikely to ever say eight.

As an Englishman, I'd say 8 fingers. Then again, I'm also quite pedantic, I figure some people would definitely say 10, but I wonder if it's a transatlantic thing.

"It turns out that..."