Family: These questions should be about family members, alive or deceased, their accomplishments, favorite things, or birthplaces. Second cousins and great greats can be included in the harder questions.
History: Look at your children's history homework for ideas. Also consider questions about historical places you've visited on vacation, like the Alamo, or history about your state. Family history can also be incorporated.
Science: Again, your children's homework will help here. Consider questions from museum exhibits you've attended or movies you've seen. How about kitchen science? Garage science? Computer science? Questions about favorite family animal shows would also be appropriate.
Literature: Books you've read together, or favorite childhood books are wonderful sources for literature questions. Who wrote a favorite book? Who are the main characters? Movies are also a good source of questions. For instance, The Lion, the Witch, and the Wardrobe is a movie, but it's also a book. Questions about the story, sequels, or C.S. Lewis would be appropriate.
Art: Have you and
Geography: Vacations! Questions like, "How many states do we cross to get to Florida?" and "Which states do we cross to get to Florida?" will be customized just for your family. Have you worked a country or world puzzle together? Use questions about the puzzle. Even questions about your city's streets are appropriate: "Main street runs in which two directions?"