Teacher: If I cut a beefsteak in half and then cut the half in half, what do I get?
Tommy: Quarters.
Teacher: And then if I cut it twice again?
Tommy: Hamburger.

老师:如果我把一块牛排切成两半的两半,我能得到几块儿?
汤米:四块。
老师:那我要是再切两次,我能得到什么呢?
汤米:汉堡。