What Am I Riddles

Question: It dances and skips,
it's read in the eyes but it cheats with the hips,
If it meets its match it's easily caught,
but it's worth nothing if it is bought.
What is it?

Question: The more places I be, the less you can see.

What am I?

Question: When I'm born, I stay in the sun A little time, and I make crazy When I'm old, I'm worth a fortuneWhat am I?

Question: When you bend me I'm kind
But I'm very hard to find
I'm easily sold
and rhyme with this when told

What am I?

Question: I can be used to build castles,
but I crumble in your hands.
I can help a man see,
and am found all around the lands.

What am I?