Answer:
Large as a mountain, small as a pea, Endlessly swimming in a water-less sea.
What type of bar gets you wet walking in and out of it but keeps you dry inside?
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around.
I have two coins, one is marked George I and one is marked George IV. One is genuine but one is a forgery. Which is the forgery?