Here's an example of a two-part question that a student shared recently:
Some parents buy their children whatever they ask for, and allow their children to do whatever they want. Is this a good way to raise children? What consequences could this style of parenting have for children as they get older?
Notice the two separate questions: Is this...? and What consequences...?
It's very easy to plan your 4-paragraph essay structure for this kind of question: introduction, answer the first question, answer the second question, conclusion. Now you just need to plan some ideas.