Answer:
A large oasis in the desert. Come with cash and leave with none.
I am heavy forward but backward I'm not.
In Paris but not in France the thinnest of its siblings.
I have thirteen hearts but no body or soul. What am I?
I am an odd number. Take away one letter and I become even. What number am I?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk