1.What is clean when it is black,and it is white when it is
1.What is clean when it is black,and it is white when it is dirty.当它干净的时候,它是黑的,当它脏的时候,他是白的.
2.What has a face and hands,but no teech or feet?什么只有一张脸和手(复数),但是没有牙齿和脚?
3.What never asks questions but always gets an answer?