Place and move the cards in your mind's eye so that the result is correct “high math”.
$$\boxed4 \boxed6 \boxed= \boxed7 \boxed2$$
(I would also be pleased if you could give an indication of the level of difficulty for non-mathematicians, I wanted to use this puzzle at a puzzle party.)
Part 1:
The following text is written in an English cipher. Decode it. (You can use any online or digital decoders that you would like to use, but I will not disclose which type of cipher is used here.)
P jztth lzpl zpb xf offg jpo zfajtj, fxt fu lztd hrggsxv p ztpey opvfx, fxt mpaaysxv p qsv gfp...
But anyway, that leads to a Google doc with the same question I think. And the Mayan text is on the next page, so it would make sense to say "the following page"
the person who posted the reddit post appears to have the same username (or similar) to the poster on PSE, so most likely still made by the same guy just trying to get more eyes on their puzzle
I've just got back from an eye check-up, where I had the weirdest experience... Most of the appointment went fine - I'm not colour-blind, my eyes are physically healthy, no blind spots, etc. - but when it came to the visual acuity test, things took an unexpected turn...
We'd been casually chattin...
The answer is a single word.
1 A reality show of people being watched by an older sibling
2 How heavy/light a person is
3 International battle
4 An American film company founded by four brothers
"Secret alphabet"
2 2 2 2 2 2 4 2 4 4 2 1 4
...