Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What month of the year has 28 days?

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?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I am the fastest animal but cannot climb the tree. What am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

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?