What has one letter and starts with an E?

How many times can you subtract the number 5 from 25?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

How can you take 2 from 5 and leave 4?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

What breaks yet never falls, and what falls yet never breaks?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?