In this episode, I will challenge you with a brain teaser. It describes the movements of a cow and then asks you in which direction the cow’s tail is. Listen carefully.
有一头牛先往东走了100米，然后往南走了100米，然后往西走了100米。
请问，现在牛的尾巴朝哪个方向？
你说“朝东”吗？
不对，是朝下！ 因为牛的尾巴总是朝下。
