Paradox
statement that, despite apparently valid reasoning from true premises, leads to an apparently-self-contradictory conclusion / From Wikipedia, the free encyclopedia
A paradox is a sentence in logic that cannot be true but also cannot be false. It is self-contradictory. Many famous problems of this kind exist.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Boyle%27sSelfFlowingFlask.png/220px-Boyle%27sSelfFlowingFlask.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Pinocchio_paradox.jpg/320px-Pinocchio_paradox.jpg)