What are the benefits of planning open-ended questions during math instruction to encourage students to provide rationales for their answers?

Answer Discussion Questions for class

Class Elementary teaching in Math methods and strategies,The subject is questioning to stimulate mathematical thinking and problem solving
Write 2 -3 paragraphs to answer the Topic Discussion question :

What are the benefits of planning open-ended questions during math instruction to encourage students to provide rationales for their answers? How would asking “yes” or “no” questions hinder a student’s ability to problem solve in the future? Provide two examples of open-ended questions about a specific math topic.