Are you ready to put your pattern-spotting, logic, and IQ to the test? In this challenge, we’ll twist numbers, letters, and ...

Have you ever noticed the letters on the back of cars and wondered what they signify? These letters, often part of the car’s badge, provide information about the vehicle’s specifications, such as ...

Usually, a story about hacking a coded message will have some computer element or, at least, a machine like an Enigma. But [Ruth Selman] recently posted a challenge asking if anyone could decrypt ...