75 printed flashcards with trivia questions (front) and answers (back), like this, varying levels of difficulty.

+ three bags of only pink, green and red m&m's respectively.

"Which came first, the phoenix or the flame?"

"Hmm...What do you think, Harry?" said Luna, looking thoughtful.

"What? Isn't there just a password?"

"Oh no, you've got to answer a question," said Luna.

"What if you get it wrong?"

"Well, you have to wait for somebody who gets it right," said Luna. "That way you learn, you see?"

"Yeah . . . Trouble is, we can't really afford to wait for anyone else, Luna."

"No, I see what you mean," said Luna seriously. "Well then, I think the answer is that a circle has no beginning."

"Well reasoned," said the voice, and the door swung open.