What Am I Riddles

Question: I'm red, blue, purple and green.
No one can reach me, not even the queen.

What am I?

Question: You can only keep it once you give it to somebody.

What is it?

Question: What's always coming, but never arrives?

Question: You put me in dry but then I get wet.
The longer I stay in, the stronger it will get.

What am I?

Question: I can be dropped from the tallest of buildings and survive,but drop me from the smallest ship and I won't.What am I?