Answer:
What goes up but never comes down?
What measures out time. Until in time all is smashed to it?
It is destruction made out of thin air, You hear it howl and give a prayer, Through barns and houses it will tear. It is a deadly funnel, Of violent and twisting air.
Where do you go in through one hole and come out through two holes at the same time?
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?