An illustration of a magnifying glass. An illustration of a magnifying glass.

Critical thinking is what separates sharp, grounded thinkers from those who get easily swayed by noise, assumptions, or surface-level ideas. When someone lacks it, their patterns show up in small but ...

Some of the oldest puzzles in history involve “figuring out” people’s ages. They are found in ancient texts across cultures, demonstrating a long-standing fascination with imaginative and logical ...