A man is the owner of a winery who recently passed away.In his will, he left 21 barrels (seven of which are filled with wine, seven of which are half full, and seven of which are empty) to his three sons.However, the wine and barrels must be split, so that each son has the same number of full barrels, the same number of half-full barrels, and the same number of empty barrels.Note that there are no measuring devices handy.How can the barrels and wine be evenly divided?
An Arab sheik is old and must will his fortune to one of his two sons.He makes a proposition.His two sons will ride their camels in a race, and whichever camel crosses the finish line LAST will win the fortune for its owner.During the race, the two brothers wander aimlessly for days, neither willing to cross the finish line.In desperation, they ask a wise man for advice.He tells them something; then the brothers leap onto the camels and charge toward the finish line.What did the wise man say?
A man is on a game show.He is presented with two doors, one on the left, and one on the right.Behind one is 2 million dollars, and behind the other is a donkey.Choose the correct door to win the prize.There are also two men in front of the doors, and they know which door leads to the millions.One wears a black hat, and the other wears a white hat.The host explains that one of the men is a liar, and will always lie, and the other man will always tell the truth – but you do not know which is which.You can ask only one of the men only one question.What is the question, and which man do you ask to ensure you win the money?