Riddle
Part of speech: noun
Definition: A verbal puzzle, mystery, or other problem of an intellectual nature, such as "It's black, and white, and red all over. What is it?" A sieve.
Part of speech: verb
Definition: to fill with holes to fill or spread throughout; to pervade to solve, answer, or explicate a riddle or question to put something through a sieve
Example sentence: Words played an important part in my growing up. Not only the written word... but words that flew through the air: jokes, riddles, puns.
Brain-teaser
Part of speech: noun
Definition: A complex riddle or puzzle.