Well, as the title suggests, this is a riddle game.
The rules are simple: One person (the RiddleMaster) posts a riddle, others try to guess it. After every 3-5 wrong answers (first 5, then 4, then 3) the RiddleMaster will give a hint.
The first person to solve the riddle will then be the next RiddleMaster, and must as such, after the RiddleMaster confirms the answer, post a new riddle.
Well then, let the game begin! As first poster I will also post the first riddle. A simple "What is it?" riddle.
It's always 1 to 6,
it's always 15 to 20,
it's always 5,
but it's never 21,
unless it's flying.