Puzzle #3 is back to the basics. Once again I’m asking people to reevaluate how they look at numbers. I provide a step in the right direction by writing out the numbers in English off the bat. Looking forward to seeing who can solve this one!
I received a few answers to Puzzle #2, but none matched what I was looking for. To add some clarity, I added a pretty big hint and another two equations that demonstrate the core principle. I’ll post the answer after I get at least one correct response.
Good luck with Puzzle #3. This weekend I’ll be launching a separate page tracking the weekly riddles, and it will also detail the prizes for correct responses.
Congrats to Jon C. for solving the puzzle. He provided a detailed solution in the comments, but here is the short version:
The answer is 4. The function strips the word down to only the letters used in Roman numerals, and the remaining numerals are the result. So f(sIX) = f(IX) = 9. In this case, f(eIghtyseVen) = f(IV) = 4.