Answer:
My first is in fish but no in snail. My second is in rabbit but no in tail. My third is in up but not in down. My fourth is in tiara but not in crown. My fifth is in tree you plainly see. My whole a food for you and me.
Two people are born at the same moment, but they don't have the same birthdays. How could this be?
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter.
You use it between your head and your toes, the more it works the thinner it grows.