When I was a kid (long ago, in the 1990s!), we didn’t have fancy interactive Santa Claus trackers on the internet. Or at least if we did, I was living under a rock and didn’t know about it.

A perfect example of this phenomenon is the annual Reddit Secret Santa, where users are challenged ... by the successful completion of a built-in trivia game tailored around their interests.

Are the resident “Jeopardy!” champ among your circle of friends? Is bar trivia your favorite pastime? If you answered “yes” to any or all of these questions, then you've come to the right ...