Answer:
Though I am only two words I have thousands of letters in me
I stink in living but when dead smells good.
I hop around and deliver eggs at Easter.
What two keys cannot open any door?
Six letters do my name compound; among the aged oft I'm found; The shepherd also by the brook hears me when Leaning on his crook; but in the middle me divide and take the half on either side each backward read a liquor tell ev'ry gay toper knows it well.
What language does a billboard speak?