Answer:
What word looks the same upside down and backwards?
What is it that you must give before you can keep it.
Take one out and scratch my head I am now black but once was red.
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever.
What tree that definitely grows does not have a shadow and does not grow fruit?
I appear in the morning. But am always there. You can never see me. Though I am everywhere. By night I am gone, though I sometimes never was. Nothing can defeat me. But I am easily gone.