Answer:
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
I'm an animal. I love marching. I always wear a tuxedo. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house. What am I?
I have memories, but none of my own. Whatever's on my inside is what is shown. If I'm ever different, it's because you changed me. I feel like a decoration, here for you to arrange me. What am I?
You find me behind the stars; or in a sixth seventh or third. It takes something round a computer and me to make pie. I am bigger than anything you can think of.
What language does a billboard speak?