If you say to a Cast Member “I have a dumb question” very often their answer will be “There’s no such thing”. If you have a question, don’t be shy about asking. Cast Members realize that most guests are not Walt Disney World experts, and they want to help you out. If they don’t know the answer, most of the time they will find out for you. Some questions that they are asked fairly often are “What time is the 3:00 parade?” and “Where (in the Magic Kingdom) is Hogwarts Castle?” If they can answer these questions (3:00 and Universal Studios, respectively) with a straight face, they are not going to think that your question is dumb.