脑筋急转弯。
（1）What animal can jump as high as a tree?
（2）Which month has 28 days?
（3）Lucky Mouse fell off a 1000-step stair and was not hurt．Why?
（4）A police officer had a brother，but the brother had no brother．How could that be?
（5）Who works only One day in a year but never gets fired?
（6）What does everybody do at the same time?
（7）The farmers in this village used(用)modern methods(现代的方法)but harvested no apples this year．Why?