Can you clarify these doubts?

1. When dog food is new and with improved taste, who tests it?
2. If the "black box" flight recorder is never damaged during a plane crash, why isn't the whole airplane made out of that stuff? (very good thinking)
3. Who copyrighted the copyright symbol? (who knows)
4. Can you cry under water?
5. Why do people say, "you've been working like a dog" when dogs just sit around all day? (I think they meant something else)
6. Why are the numbers on a calculator and a phone reversed? (God knows)
7. Do fish ever get thirsty? (let me ask and tell)
8. Can you get cornered in a round room? (by oneseyes)
9. Why do birds not fall out of trees when they sleep? (tonight I will stay up and watch)
10. If corn oil is made from corn, and vegetable oil made from vegetables, then what is baby oil made from? (No comments)
11. What should one call a male ladybird? (No comments)
12. If a person suffered from amnesia and then was cured would s/he remember that s/he forgot? (can somebody help )
13. Can you blow a balloon up under water? (yes u can)
14. Why is it called a "building" when it is already built? (strange isn't it)
15. Why do most cars have speedometers that go up to at least 130 when you legally can't go that fast on any road?
16. If drinking & driving is not allowed, why the hell they have parking in Bars?