We all love a mathematical brainteaser here at IFLS. Monty Hall? Done it mate . Two circles shoved into a quadrilateral of unknown size? Been there, solved that . Some Singaporean kids’ seemingly impossible homework? Debunked it , found the real answer. It’s kind of our thing. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

So, when we saw a new probability puzzle making the rounds online this week, we couldn’t help ourselves.

“There are three boxes,” begins the puzzle, posted on Reddit this past weekend and no doubt everywhere else at some point too. “Each box contains two balls. One box contains two gold balls, another box contains two silver balls, and the final box contains one gold ball and one silver ball.” Obviously

See Full Page