Answer:
The sharp slim blade, that cuts the wind. What is it?
Sometimes black, sometimes white, I have veins but no blood
I can be used to type and point you see. But don't forget, you can count on me. What am I?
What is the smallest bridge in the world?
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
I am your mother's brother's only brother in law. Who am I?