By all means make more. May I suggest a Mario Kart quiz? Or perhaps some other quiz for a specific Mario game? And when you can't come up with other ideas, make an Ultimate Mario quiz containing at least 100 questions about any of his games or himself in general. Hard ones like how he used to be a carpenter and how he used to have red overalls and blue shirt.
Also, good luck ruling Canada, Japan, Germany, and Rusiia, And everything else. And perhaps someday you'll rule the Milky Way.
Mantlion
good luck! =)