Answer:
A seed am I, three letters make my name. Take away two and I still sound the same.
Where do you go in through one hole and come out through two holes at the same time?
I cost no money to use, or conscious effort to take part of. And as far as you can see, there is nothing to me. But without me, you are dead.
What word is the same written forward, backward and upside down?
I have an eye but cannot see, You'll head inside when you see me.
People take me on walks and I run and have fun. What am I?