I have. For one thing, I write mysterious numbers in pink ink on the back of certain $20 bills. I have a good reason for doing it, one that I bet no one would guess.

They’re out there in the world somewhere. Maybe you’ll find one.

What have you done that would leave the finder or discoverer guessing forever?

 
Tags as I wrote them: mysterious acts, mysteries, puzzles, enigmas (no cap.), unanswerable questions

Topics: puzzles, mysteries, Enigmas, unanswerable questions, mysterious acts