Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

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

What Word am I Looking For ?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

What has to be broken before you can use it?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. 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?

I’m tall when I’m young, and I’m short when I’m old. What am I?

How many sides does a circle have?

If an electric train is travelling south, then which way is the smoke going?