A king has 1000 bottles of rum of which one is poisoned.One dies 3 days after consuming the poisoned wine.He has to give 999 bottles for a party scheduled 3 days later only. He wants to test the wine on his subjects to find out the poisoned wine. What is the least number of people involving whom the king can find the bottle out? NOTE:It is not asked for the least number of people to be killed.It is asked for the least number of people to be involved i.e. the least number of people the king can use for his experiment.