Answer:
To you, rude would I never be, though I flag my tongue for all to see. What am I?
With three eyes and as black as night I frequently knock down ten men with a single strike!
So cold damp and dark I am. To stay you would refrain yet those who occupy me do never complain.
My first two letters say my name. My last letter asks a question. What I embrace I destroy.
I am black within and red without; with four corners round about. What am I?
What language does a billboard speak?