Answer:
Three little letters, a paradox to some. The worse that it is, the better it becomes.
What is pronounced like one letter, written with three letters. And belongs to all animals?
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.
I am always in front of you, but you will never see me. What am I?
A word I know, six letters it contains. Subtract just one and twelve remains.
I have two eyes in the front and a lot of eyes on my tail