Hyberbole
it an exaggeration, she didn’t actually take two second to finish the test she was just faster than everyone else.
The answer is the 3rd child’s name is John
Depend on who you're trying to persuade. Depending on the subject, the audience may be different, so the need for persuasion may have a different appeal. If it's a tragic novel, it may call for emotional and ethical persuasion. In a murder mystery, for example, it may call for logical and rational persuasion. In a fiction novel, it may call for facts and evidence, especially if evidence is needed to be cited. And most often times, persuasion includes interests and opinions, so don't worry about that one.
What comes to my mind is a person who wants avenge something, whether a person or and item that they love. It usually has malice behind it.