Under the law of certain country, anyone caught poaching in the kings private forest is punished by being hanged or beheaded. However, before the culprits are hanged or beheaded, they have to make a statement. If the statement is true, they will be beheaded, if it is false, they will be hanged.
One day, a man was caught poaching in the Kings private forest and the statement he made was:
"I shall be hanged"
Now, this is where the problem lies. If he was hanged, then his statement would be true and therefore he should be beheaded.
But if he was beheaded, then what he had said was true. But he did not say that he would be beheaded.
Should he be hanged or beheaded?
This type of problem is called LOGICAL PARADOX.
A paradox is a statement which contradicts itself.