Answer:
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find
I can be used to type and point you see. But don't forget, you can count on me. What am I?
I have an eye but cannot see, You'll head inside when you see me.
Be sure to shout for its answers are weak, but there is no language it cannot speak.
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
What language does a billboard speak?