At first glance, most of us will think "such a stupid question, it's a sandwich!" But really think about it. What makes a sandwich ?

Are burgers and hotdogs sandwiches ? Two breadsticks and a piece of cheese? Two slices of bread? Does it even have to be bread? Or edible?

These are the most important questions in life.

(This is what happens when I'm bored and left alone too long)