vado Tune in Tuesday at noon ET for a special collaborative 5-day trivia Hunt with Ringorang, the cool real-time trivia game. We'll be giving away our usual awesome HDYK subscriptions, a Vado HD cam and a mentalfloss t-shirt from our store. If you're not following our hints and clues via our Facebook page, be sure to check that out and become a Fan. Oh yeah, and the HDYK? rules page is right this way.