Week 4 Day 5

Can you solve these riddles?

1. What goes up and down stairs without moving?
2. What goes around the world and stays in a corner?
3. What kind of room has no windows or doors?
4. What gets wetter the more it dries?
5. I have holes on the top and bottom.  I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I? 

Do you have riddle? Add it below so everyone else can try and solve it?