‘What if there is a tiger in both rooms?’, the prisoner asked.
‘Well, then you are just unlucky’, was the king’s reply.
‘And if there is a woman in both rooms?’, asked the prisoner.
‘Then… you’re just lucky!’, replied the king, ‘Stupid question, isn't it?’
‘OK, but let's assume then that there is a woman in one of the rooms and a tiger in the other. What will happen then?’, the prisoner continued.
‘In that case it is for you to pick the right one, simple as that!’
‘But… how can I know which door to pick?’
The king then pointed at the signs he had put on the doors to the two rooms:
ROOM I: THIS ROOM CONTAINS A WOMAN, AND THE OTHER ONE CONTAINS A TIGER
ROOM II: ONE OF THESE ROOMS CONTAINS A WOMAN, AND ONE OF THEM A TIGER‘Is it true what the signs say’, the prisoner now asked.
‘One of them tells the truth. But the other one tells a lie’, was the king’s answer.
If you were the prisoner, which door would you choose (provided that you prefer to meet the woman rather than the tiger…)?