PARADOX

[noun] - a situation, fact or statement which seems impossible and/or difficult to understand because it contains two opposite facts or characteristicsIt is a paradox that the French eat so much rich food and yet have a relatively low rate of heart disease. [C + that clause]The statement "I am a liar" is a paradox because if the statement is true, it must be false and if it is false, it must be true. [C]Her stories are full of mystery and paradox. [U]