Answer:
Sharp and long, flag of the world. What is it?
Look into my face and I'm everybody. Scratch my back and I'm nobody.
People like this usually live in rural areas, unless they are lucky enough to strike oil and move to Beverly Hills.
Who spends the day at the window, goes to the table for meals. And hides at night?
What is red and nailed to a wall?
I am rarely touched but often held. If you are smart you'll use me well. What am I?