Nice job. Feedback:
Eyes Dating Site
I used to joke that an Afghan Tinder would just be swiping left or right on pictures of eyes because of the niqab.
Sexy Math
This is sort of a variation on the classic NSFW jigsaw/Rubik’s cube-style puzzle, and of course a number of old ’80s PC games where you revealed a risque picture.
If you want to make this more amusing, you should really include some saucy pictures of actual mathematicians, kind of like a play on the “sexy scientists” calendar in The IT Crowd.
Spot the Differences
There’s a great episode of The Office where Pam distracts Creed, the new acting manager, from destroying the branch by giving him two pictures from corporate and asking him to find the differences. Of course, they’re the same picture.
Funny how a lot of these ideas already exist in some form - just in slightly different contexts. "Sexy mathematicians" is actually a great direction, didn’t think of that one. Or teachers could upload their own photos and send them as assignments for motivation :))