The classic answer to the riddle “what runs but never walks?” is: a river.

Quick Scoop

The Riddle Itself

This popular brain teaser usually appears in a slightly longer form:

“What runs but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?”

Each clue is a playful way to describe parts of a river using human-like terms.

  • It runs : A river is always flowing, so we say it “runs.”
  • It never walks : It doesn’t have legs or feet, so it can’t walk.
  • It has a mouth : The place where the river flows into the sea or another body of water is called its “mouth.”
  • It has a bed : The ground at the bottom of the river is called the “riverbed.”
  • It has a head : The source of the river is often called its “head” or “headwaters.”

All of these together make “river” the neat, satisfying answer to “what runs but never walks.”