Fill in the two blanks to the Double Dare rules Marc Summers read daily on the show (which he famously ripped the cue cards for once he memorized it): "I'm going to ask you a question, and if you don't know the answer or think the other team doesn't have a clue, you can dare them to answer it for double the money. But be careful, because they can double dare you back for ____ ____ the dollars, and then you either have to answer the question or take the ______ ______."
Four times, physical challenge