What Am I Riddles

Question: I know all, have seen all, yet I am not conscious. Looking back upon me shows mistakes and also good things. Looking in the middle of me shows opportunities to be exploited. Looking forward upon me shows the effects of decision. What am I?

Question: What smells better than it tastes?

Question: I am just an ordinary word that comes in form of a man, accepted by many but rejected by a few, not felt by many but felt by a few, not shown by many but shown by a few. What am I?

Question: You can rest on my pad without touching the keys.
I will sing all month long as long as you pay your fees.

What am I?

Question: What is thrown to both kings and beggars?