Answer:
My teeth are sharp, my back is straight, to cut things up it is my fate.
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
I sleep by day, I fly by night. I have no feathers to aid my flight.
Iron roof, glass walls, burns and burns and never falls.
Of no use to one, Bliss to two. Men lie for it. The baby’s right,
I have two bodies joined together as one. When standing still I run and run.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?