I guess we’ll start with a version of that puzzle you’ve probably seen in which you’re asked to pick the item that doesn’t belong with the rest. Here’s one:
Which one of the following does not belong with the others?
Binoculars, eyeglasses, goggles, handlebars, jeans, pliers, scissors, shoes, tweezers
Answer: The word “shoes” is the only “pair” that actually has 2 separate pieces.
(I didn’t get this one right, picking “jeans.”)