article: Paradox
links: Ugly duckling theorem Thought experiment Zeno's paradoxes Buttered cat paradox Perpetual motion Banach–Tarski paradox Dilemma Influence Hilbert's paradox of the Grand Hotel Simpson's paradox Irony Schrödinger's cat Monty Hall paradox Willard Van Orman Quine Arrow's impossibility theorem Liar paradox The Pirates of Penzance Oxymoron Contradiction