Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Do You See It?

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?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

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

What Word am I Looking For ?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

How can you take 2 from 5 and leave 4?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What word begins and ends with an E, but has only one letter?