Topic, restatement, and illustration; problem and solution; and question and answer are types of what?

Topic, restatement, and illustration; problem and solution; and question and answer are types of paragraphs.
Topic paragraph is where you talk briefly about your topic. Restatement paragraph is where you keep talking about your topic in a slightly different way. Illustration paragraph is where you give specific examples. Problem paragraph is where you ask a certain question, and solution paragraph is where you give your answer.