Answer:
I contain six letters, minus one and you got twelve. What am I?
What force and strength cannot get through, I with my unique teeth can do. What am I?
What goes around the wood but never goes into the wood?
The higher I climb, the hotter I engage. I cannot escape my crystal cage. What am I?
I fly forever Rest never.
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