This riddle asks what kind of stone is found in every ocean. It sounds as if the answer should be a special type of rock, mineral, or gemstone hidden beneath the waves.
The answer is a wet stone. Any stone sitting in the ocean will naturally be wet, so the clue is much simpler than it first appears. The riddle is based on everyday logic rather than geology.
That is what makes it effective: the phrase “what kind of stone” encourages you to search for a named variety, while the answer describes the stone’s condition instead. Riddles like this reward simple thinking. Sometimes the obvious physical detail is more important than trying to find a complicated scientific explanation.
