Answer:
What's black when you get it, red when you use it, and white when you're all through with it?
What goes in the water red, and comes out black?
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
I can be used to type and point you see. But don't forget, you can count on me. What am I?
What covers its face with its hands, speaks no language, yet most known what it's saying?