What am I?

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: What tastes better than it smells?

Question: What goes in the water black and comes out red?

Question: What asks but never answers?

Question: I have 6 faces and 21 eyes, but can't see a thing. What am I?

Question: What cannot be seen or felt, but can only be broken by voice?