A question that is simple to state but that seems hard is the following, almost rethorical one:
What was first: the chicken or the egg.
Folklore is that this question has no answer. If one would answers chicken, then the reply is: but what did the chicken came from?. An egg, of course, so but when one answers egg to the question, then the reply is: but who made the egg? Well, a chicken, but then, where did that chicken came from? So, indeed, it seems this question has no answer. So, is this `chicken-or-egg' question really unanswerable - a paradoxal question?
Well, let me tell you: the question does have an answer. The answer however depends on a few other matters: :
How the question is precisely interpreted? In particularly, what does the question mean by egg?
If we follow the interpretation that we mean by egg a chicken-egg, then we may have to tell how we define the notion of chicken-egg...
But mostly, it depends on our viewpoint on the issue of creation versus evolution.
A little logic plus the answers to the questions above is sufficient to resolve the chicken-or-egg matter.
The situation is a little more complicated for followers from theistic evolution. Here, possibly the chicken was formed from another type of bird by a small evolutionary step, and in this case, the answer is as above, depending on the definition of the notion of chicken egg. But also, possibly, the chicken was formed by a bigger jump. Could there be a bird, not a chicken, that made an egg of its own type, from which God let a chicken be born? Could God have transformed a bird, not a chicken, during its life to a chicken? Or was there a bird, not a chicken, that produced an egg that was like a chicken-egg? In this case, we are not free to define the notion of chicken-egg ourselves, and we may just have to say that we do not know exactly how God created the species / chickens.
To some people, the analysis given above may seem silly. Does it teach us something, except that we can somehow answer the chicken-or-egg question? Well, perhaps we can conclude a few other things. Some questions become easier when we try to analyse them precisely, but then the answer appears to depend on viewpoints on other issues. Even then, the answer given by the analysis may be wrong, when the viewpoint is wrong.
In fact, here is another answer to the question: I believe that God created the animals, plants, and humans. He also created the chickens. But, while I may have some ideas on how he created them (creationist or theistic evolutionist), I cannot know for sure. I do not know with certainty how creation took place: whether eggs were created first, whether God used evolution in His creation process, whether we should take the seven days of creation from the Bible literally or whether these were meant to be a metaphore. But I know for sure that creation was His wish.