The Chicken and the Egg
I have just been involved in a conversation in which one of my questions was answered with 'well, what came first, the chicken or the egg?'. The whole stigma of answering a question with a question aside, it annoys me that the chicken-egg problem is so commonly seen as such an impossible question to answer.
Firstly, to give the simplest possible answer, dinosaurs laid eggs long before chickens existed. So the obvious answer is the egg. But when I use this argument it's almost always followed by some smarmy git saying "ah, but I'm talking about chicken eggs, which came first?" to which the answer is still the egg, as I will explain.
Evolution is generally accepted as scientific fact. There are a few idiots left that believe otherwise, but let's assume for a minute that science is right. If we trace the ancestoral history of any given chicken back through the generations, we will encounter lesser and lesser evolved forms of the bird. At some point we will reach a point whereby the creature no longer fits the definition of a chicken. This creature's offspring is the first chicken, and that chicken came from an egg, laid by its non-chicken mother.
So, ignoring the fact that I've just written three paragraphs on poultry genealogy without a hint of irony, next time someone asks you which came first, you can tell them from me, it's the bloody egg.