几个英语谜语

几个英语谜语
1.Ten plus ten is ten.Ten minus ten is twenty.What is it?
2.It has two big eyes,but it can't see.
It has two ears,but it can't hear.
It has a mouth,but it can't eat.
It has two hands,but it can't do anything.
It has two legs,but it can't jump.
It has no father or mother.What is it?
第二个到底是什么?英文+中文