paradox
Animalia Paradoxa – Mythical, magical or otherwise suspect animals mentioned in Systema Naturae
antinomy – Real or apparent mutual incompatibility of two laws
aporia – State of puzzlement or expression of doubt, in philosophy and rhetoric
contradiction – Logical incompatibility between two or more propositions
dilemma – Problem requiring a choice between equally undesirable alternatives
Eubulides – Ancient Greek philosopher known for paradoxes
fallacy – Argument that uses faulty reasoning
Oxymoron – rhetorical device that uses an ostensible self-contradiction to illustrate a rhetorical point or to reveal a paradox