Answer:
I am heavy forward, but backward I'm not. What am I?
There's not a kingdom on the earth I haven't traveled over and over and though I know not whence my birth yet when I come you know my roar. I through the town do take my flight and through the fields and meadows green and whether it be day or night I neither am nor can be seen.
I am the kind of a tree that is carried in your hand. What am I?
As I went over London Bridge I met my sister Jenny; I broke her neck and drank her blood and left her standing empty.
I am always running but I never get tired or hot. What am I?
A little house full of meat, no door to go in and eat.