Just wrote a final exam.  My favorite question is #3:

One premise of the humor unit is that some serious parts of life contain ridiculous dynamics of power.  John Locke is not funny.  His argument in the Second Treatise of Civil Government is full of foundational ideas about understanding power.  Select three of his most important claims or conclusions, and show what is ridiculous about them.  Your standards for what is ridiculous must be based on other course material.  You may but are not required to include a joke based on each idea you found to be ridiculous.