Answer:
I have a little house in which I live all alone. My house has no doors or windows and if I want to go out I must break through the wall.
What is always coming but never arrives?
Every night I'm told what to do and each morning I do what I'm told. But I still don't escape your scold
I go from house to house a messenger small and tight. Whether it rains or snows I sleep outside at night.
I have keys but no locks. I have space but no room. You can enter but can’t go outside. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.