The correct answers are The wise wizard gave me some excellent advice. and I need more information about the fire-breathing dragon.

In English, abstract nouns like advice and information are uncountable. This means they cannot be pluralized with an "-s" (no "informations") and they cannot be used with the singular indefinite articles "a" or "an" (no "an advice"). We use words like "some," "more," or "a piece of" instead!