|part of speech:
||a puzzling, tricky, and often funny question asked as a game or as a test of one's thinking skills.
Here is a riddle: When is a door not a door? Answer: When it is ajar.
||any question, problem, person, or thing that is difficult to figure out.
How our dog found us hundreds of miles from home is a riddle.That shy boy is a riddle to me.
- mystery, puzzle
||mystery, problem, puzzle