How to Find Out Someone's Ring Size

Someone named Curtis sent us in a note on the problem posing page at problemsquared.com saying that they were listening to our latest episode about ring size. This was when Beck used to solve the problem of how do you find out someone's ring size if you want to surreptitiously buy them a ring without them knowing what you're up to. Curtis says that they made up a template like a small document about the size of a business card that they referred to as the present information card and pretended like they got it from somewhere else. They actually said that they did every single finger size. And so then on the card, they put the request for all sorts of information,