Good Riddles

 
What am i (medium)

Question: Without me you will not live. Without me you will not love. Without me you have no courage,what am i?

Riddle #8 (easy)

Question: Does a ton of feathers or a ton of bricks weigh more?

Riddle #10 (easy)

Question: I have Eighty-eight keys but cannot open a single door?

What am I?

Riddle #23 (medium)

Question: Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not.

What is it?

Riddle #25 (easy)

Question: What is it that after you take away the whole, some still remains?