What is higher without a head than with a head?

　　【谜底：A pillow】

　　I fly, but I have no wings.I cry, but I have no eyes.

　　【谜底：cloud】

　　What can you swallow that can also swallow you?

　　【谜底：Water】

　　What goes around the world but stays in a corner?

　　【谜底：stamp】

　　What starts with a T, ends with a T, and is full of T?

　　【谜底：Teapot.】