How is that Possible?

What has to be broken before you can use it?

I am a farm animal. I eat grass.

I am big and intelligent. I carry people and things.

I help with work. I run quickly.

What am I?

Can you name the four days of the week that begin with letter "T"

It is Orange. It is big and thick.

It is a popular vegetable in autumn and spring. 

You can carve it in Halloween.

What is it?

I am the fifth planet from the sun.

I am the fastest spinning planet in the solar system.

Who am I?