A barber who is a man shaves 

all and only those men 

who do not shave themselves. 

Does he shave himself? 

 

If a crocodile steals a child 

and promises its return 

in the case that the father 

can correctly guess exactly 

what the crocodile will do, 

how should the crocodile respond 

if the father correctly guesses 

that the child will not be returned? 

 

What would happen 

if Pinocchio said, 

"My nose will be growing"? 

 

 

 

Source: http://en.wikipedia.org/wiki/List_of_paradoxes