1．What is it that is white and black and red all over？
2．What table do we see in the fields？
3．What is that which goes up the hill and down the hill and yet stands still？
4．Why are fixed stars like pens，ink and paper？
5．Why are the tallest people the laziest？
6．How can we change a lady into a boy？
7．What kind of animal will ome larger when its head is cut？
8．Where can we always find money when we look for it？
9．Where do animals speak with each other？
10．When will a net hold water？
11．When can we see things without our eyes open？
12．What has a lot of teeth but no mouth？
13．What goes up but never comes down？
14．What tree is of the atest importance in history？
15．Why is a madman like two men？
Key：1．Newspaper．2．Vegetable．3．Road． 4．Stationary（Stationery）．5．ause they are always longer in bed than others．6．Take away“y”（lady—lad）．7．Fox—Ox．8．Dictionary．9．In the fairy tales and fables．10．When the water turns to ice．11．When we are dreaming．12．Comb．13．Your age．14．Date． 15．ause he is a man beside hilf．