Might be obvious for most people, but when you choose to answer a riddle of a card, is it discarded? The manual doesn't mention this anywhere, but says you have 2 choices: resolve normally, or answer the riddle. It doesn't mention the riddle as an 'extra', something optional, which would be much more clear. So far, I've resolved them as riddles, but something tells me it's supposed to be optional.
Which one is it? Thanks.