Can an omniscient being create a rock too heavy for itself to lift? Does stating “this sentence is false” make it true or false? Does saying, “it is opposite day today” make the day opposite or normal? Logic, Math, Physics, Chemistry, Politics, Economics, these are just some of the areas that pose paradoxical puzzles and unsolvable riddles that humans have been contemplating since the beginning of time. Stuff to make us think until our brains explode! Oh yeah and there's pizza.