Jeronimo and Aleks sent me these:
P.S. Actually, I don’t like the first one above because it’s so obviously fake. I mean, they might all be fake, but it’s clear that nobody would ever be given a question of the form, “1/n sin x = ?”. It just doesn’t mean anything. Somebody must have come up with the “six” idea and then worked backwards to get the joke.
The third one also looks fake, in that who would ever be given something so simple as 3,4,5. But who knows….
P.S. Corey Yanofsky sent this: