GOOD RIDDLES

What goes up but never comes down?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I? 

I have lakes but no water,

No cars but I have streets;

Many places and borders,

But I'm in one piece.

What am I?

Look in my face, I am somebody; Look in my back, I am nobody.

What am I?

I make two people out of one.  What am I?

Until I am measured I am not known, Yet how you miss me when I have flown.  What Am I?

Little tommy Tittletat took two Ts. To tie two ups to two tall trees. To torment the terrible tittletat, How many Ts in all of that.

How can you leave a room with two legs and return with six legs

One day, the police found a man dead inside a hut. In his left hand, he's holding a gun. In his right hand, he has a recording. When the recording is played, the police hear the man talking about how horrible life is and how he wants it to end. The recording ends with a gunshot. The police are about to call it a suicide until you point out a very important clue. What is it?

I am white when I am dirty, and black when I am clean. What am I?