英语谜语二 Riddles2

1. What day of the week is the best for having fried foods?
2. What kind of dog has no tail?
3. What keys won't open doors?
4. When can you run as fast as a horse?
5. I begin with T and end with T, and I am full of T. What am I?
6. Why is "heat" faster than "cold"?
7. Why is "SMILES" the longest English word?
8. In CHOCOLATE, there are three things to drink. What are they?
9. I get dirty when your face and hands become clean. What am I?
10. When is a blue book not a blue book?
11. Why do birds fly south for winter?
12. What kind of cake do small boys dislike?
13. Twelve girls were standing under a large umbrella. Why didn't any
      of them get wet?
14. What is there between sea and sky?
15. What goes up but never comes down?