Okay, it’s time to give your brain a serious workout—and no, we’re not talking about Sudoku or those “count the triangles” puzzles. This is one of those sneaky, maddening, “how did I miss that?!” ...

We take the alphabet for granted, having become so accustomed to using it for reading and writing. Consider, though, that all writing systems started out as pictures of things. Our letters are ...

On-air challenge: The four rarest letters in English are J, Q, X, and Z — which together account for less than 1% of all use in the language. I'm going to give you some words. Change a single letter ...

Challenge your cognitive abilities with this perplexing optical illusion! A grid of seemingly random letters hides a clever secret: one letter of the alphabet is conspicuously absent. Designed to ...