求几道英语智力题
1.What gets wetter and wetter the more it dries?
2.What can you catch but not throw?
3.I have holes in my top and bottom,my left and right,and in the middle.But I still hold water.What am
4.The man who invented it doesn't wat it.The man who bought it doesn't need it.The man who needs it doesn't know it.What is it?