My son is super literal. To the point that over the years, therapists have wondered (and then discarded) the idea that he might be on the autism spectrum. Anyway, sometimes he's serious about his super literal answers (and gets upset when misunderstandings or frustration ensues). Other times he's deliberately being funny. Here's an example from yesterday:
Me: "Who made the hard boiled eggs? You or grandma?"
Michael: "Does it matter?"
Me: "No, I just wanted to know who made the eggs."
Him: "The chicken made the eggs."
If we had such things as a Fair Witness* in this world, Michael wouldn't need much training at all.
*Robert Heinlein's "Stranger in a Strange Land". The main character is a Martian named (interestingly enough) Michael.