There are a lot of names for this feature (Mind Grind, Nearly Impossible Trivia, The Daily Tease, etc.). What you call it doesn’t really matter. The game is easy to play, and gets your phone ringing early in the morning.
In a way, this game is taking advantage of the low hanging fruit. The audience responds and will play, but don’t build a big part of your show around it. It’s a good segment, but it’s not one of those “gotta tune in” features.