DUH! (The common sense quiz)

This is a quiz about common sense. Duh! You will need to think in a different way, obviously. Just because you get straight A's doesn't mean you will get a good score. But you knew that already.

Please pay close attention to any directions. Also, a tiny mistak could bring your score way down. IMPORTANT: If a question starts with a capital h, the answer is "the cheese"(If it's an odd-numbered problem) or "cell phone"(If it's an even-numbered problem). Good luck!