Answer:
I need to be taken before you can have me. What am I?
I am black, white, and read all over. What am I?
I am just two and two. I am hot. I am cold. I am the parent of numbers that cannot be told. I am a gift beyond measure, a matter of course. What am I?
You use me between your head and your toes the more I work the thinner I grow.
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
Give it food and it will live, give it water and it will die.