What can be shared by everyone but owned by no one? This riddle sounds like it might be asking about a physical object, but the answer is something available to all of us and impossible for one person to truly possess.
Answer: The air.
Everyone can breathe and share the air around us, but no individual can own the atmosphere itself. That contrast between “sharing” and “owning” is the clue that makes the riddle work.
Other creative answers may come to mind, but air is a simple fit because it surrounds everyone and is continually shared. Riddles like this are fun because the solution becomes obvious only after you stop thinking about ordinary possessions.
