What Am I Riddles

Question: I smash but I never hurt you. Give me your unwanted items and I will eat them and take them so you can get more. Some people might not like me while others may but I still come around on certain days. What am I?

Question: (1) What am I and (2) how do you spell it?

Question: What is bright and sunny?

Question: When you stand up he sleeps When you sleep he stands Who is it?

Question: I'm small but big, i hide behind you but come out when you fall... What am I?