Answer:
Against the sun I protect your eyes and am often worn on the face of spies
I am the place where yesterday is always before today. What am I?
I am gold and can be black and white I'm a symbol for a nation when freedom took flight.
I don't live within a house, nor do I live without. Most will use me when they come in, and again when they go out. What am I?
I am a small paradise surrounded by dryness and heat.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?