My previous post, another challenge, hasn't had that many takers. Perhaps it's too difficult or maybe my threat of posting a nude selfie in the event of a correct answer deterred participants.
Well, here's another - much easier - quiz, this time of super macros, rather like, but not as good as, Jon
(Jarvo's) wonderful quizzes back in the day.
You'll be glad to know there's no prize, just the satisfaction of knowing. If you get six out of seven, you're good, very good. If you get the seventh one, you'll have to pee in a cup and get yourself drug-tested, because it is almost impossible.
I'll post the answers after the tenth comment or in two days' time, whichever comes later.