Answer:
What goes up and down, but does not move?
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
I have a ring but no fingers. I used to stay still all the time but nowadays I follow you around.
What gets whiter the dirtier it gets?
What do you call a pig that is no fun to be around?
My days are numbered. What am I?