1. Why are giraffes the cheapest to feed?
2. Why are dogs afraid to sunbathe?
3. Why is the pig always eating?
4. Why are politicians no longer concerned with snowball fights?
5. Why don't women get bald as soon as men?
6. What can pierce one's ears without a hole?
7. What's the longest word in the world?
8. Why does time fly?
9. Where can a dog get another tail?
答案：
解析：
