Answer:
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
I am round. I have only one line. Circle is not my name indeed. What am I?
I jump when I walk and sit when I stand.
Good memory, skin like the sea. A great beast I am, yet vermin frightens me. What am I?
What tastes better than it smells?
What language does a billboard speak?