Answer:
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty.
My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
What is the thing that stays the same size, but the more it's used the more it decreases?
It's a game played by serious people that takes place on a global scale.
I am the heart that does not beat. If cut, I bleed without blood. I can fly, but have no wings. I can float, but have no fins. I can sing, but have no mouth.
People take me on walks and I run and have fun. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?