While these may be important questions to ask, they don't exactly stimulate deep thought.
Questions lie at the heart of the learning process.
A good question raised during class or on a homework assignment can provoke curiosity, stimulate thought, illustrate the true meaning of lecture material, and trigger a discussion or some other form of student activity that leads to new or deeper understanding. A kettle containing boiling water is on a stove. If you put your finger right next to the kettle but not touching it, you'll be fine, but if you touch the kettle for more than a fraction of a second you'll burn yourself. Explain the shapes of your plots. An open flask containing an equimolar mixture of two miscible species is slowly heated.