An example of a grad-school level question?
Which of the following tools is most useful for tightening a small mechanical fastener?

An example of a grad-school level question?
Which object is nonliving?

An example of a grad-school level question?
What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?

An example of a grad-school level question?
What happens to water when it boils?