Good Riddles

 
Riddle #372 (medium)

Question: I'm in everybody but everybody still wants me.
I won't feed you but I'll feed the tree.

What am I?

Riddle #405 (medium)

Question: You wear me every day but you never put me on.
I will change colors if you leave me out too long.

What am I?

Riddle #410 (medium)

Question: When is 1500 plus 20 and 1600 minus 40 the same thing?

Question: We hurt without moving. We poison without touching. We bear the truth and the lies. We are not to be judged by our size.What are we?

Question: How can you make 7 even?