What Am I Riddles

Question: I don't like crackers and I don't drink tea. I just want to eat what I used to be.

Question: A man travels by wagon,
brings joy each evening,
but depression by the morning.

Who is he?

Question: We have what we did not find; what we did find we left behind.

[What do we have?]

Question: People are scared of me but I am loved by some. I can be your best friend but could become your enemy in a blink of an eye. What am I?

Question: I can survive a nuke People hate me We live everywhere We watch you everynight Our names start with a DICK What am I?