I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

What has one letter and starts with an E?

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

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

How many letters are in the alphabet?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?