What is black and white and read all over?

Why this works

This classic riddle plays on the word "read," which sounds like "red." The clever twist lies in the imagery of something that is black and white in color—like the printed pages of a newspaper—and is "read" (or "red") by many people. So, while the riddle sets you up to visualize colors, the punchline reveals the pun, making the answer both surprising and delightful!