Answer:
I am the yellow hem of the sea's blue skirt.
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
What moves without seeing and cries without eyes?
What is never used unless it's in a tight place?
Why is the letter B always cool?