Answer:
I am useless when together but useful when I am broken apart. What am I?
Travel a mile and I will change, travel a million and I will end as I started. What am I?
A thousand wheels but move I do not. Call me what I am call me a lot.
I was was before was was was.
What kind of tree can you carry in your hand?
The answer I give is yes, but what I mean is no. What was the question?