The statement “the ocean contains enough water to fill a bucket” doesn’t mean the ocean only contains a single bucket of water. “The ocean contains enough water to fill one bucket” might imply that the ocean only contains one bucket of water but OP doesn’t specify a number. This is an interesting conversation on ambiguous semantics in English.
Actually, OP’s statement is still wrong because there are more bones than 1 entire skeleton on average.
The statement “the ocean contains enough water to fill a bucket” doesn’t mean the ocean only contains a single bucket of water. “The ocean contains enough water to fill one bucket” might imply that the ocean only contains one bucket of water but OP doesn’t specify a number. This is an interesting conversation on ambiguous semantics in English.