Lantern Festival Riddle

What animal has its own built-in shower?

It wears over 300 pieces of clothes and takes off one piece each day. At the end of the year, only one piece of cardboard is left. (hint: found in the house)

What building has the most stories?

I have a little house in which I live alone.  It has no doors or windows and if I want to get out I must break through the wall. (Hint: edible food)

They are twin sisters, same height and same weight.  They work in the kitchen arm-in-arm.  What ever is cooked they always try it first.  What are they?

What belongs to you but others use it more than you do?

Two houses with doors wide open. They allow a million people in but can’t stand a tiny grain. (Hint: a body part)

A thousand threads, a million strands. Reaching the water, vanishing all at once. (Hint: a natural phenomenon)

Sometimes it’s curved like a smile, other times, it’s round like a plate.

What has hands but cannot clap?