Question: The rich landlord wants to marry the beautiful farmer's daughter. He tells the daughter that if she doesn't marry him, he will evict her father from the farm and they will be homeless. She begs for mercy. Slyly, the landlord agrees to allow her one chance to stay. He pulls a bag from his pocket, and reaches down and picks up 2 stones from the rocky path then places them in the bag. Reach into the bag and pull out one stone. If you pull out the black stone you will agree to marry me. If you pull out the white stone you and your father can live here rent free. The problem is that she knows that he picked up two black stones and no matter which one she selects she will be forced to marry him. What can she do to avoid marrying the greedy landlord?
Answer: They are standing on a rocky path. She reaches into the bag, pulls out one of the black stones and then pretending to be clumsy drops it onto the rocky path. Oh my, she exclaims.... I dropped it, but whichever color stone is still in the bag will tell us which color stone I dropped!
Question: There is a 5 gallon and a 3 gallon box. You also have a hose with unlimited water. How are you gonna make the 5 gallon have 4 gallons using your items? (You do not know the exact measure measurements of a gallon)
Answer: You fill the five gallon up and pour it into the 3 gallon. The dump the 3 gallon out and pour what was left in the 5 gallon into the 3 gallon so that you have 2 gallons in the 3 gallon. Then fill the 5 gallon up and pour it into the 3 gallon to fill it up. Now you have 4 gallons in the 5 gallons.
Question: There were 2 doors. Behind the 1 door, is hell and behind the other door, is heaven but you don't know which door will take you to heaven. In front of them, there were 2 brothers, which is guarding the door. One of the brother always lie and the other one always tell the truth. Of course you don't know who is lying and who is not. You only get 1 question to ask one of them to figure out which door leads to heaven. What question you might ask? Remember you only get to ask 1 question. it means that you can't ask one question each of them. that will be 2 questions. You only ask 1 question to any of them and no more. How do you do that?
Answer: Go up to one of the guy and ask this question, " Hello, which door that your brother will point if I ask him which way is the heaven." Then take the other door. Don't enter the door that he was pointing. This question will work for both of them because if you ask this question to the truth guy, he will point the hell because he knows that his brother will point hell and if you asked to the liar, he'll still point hell because he knows that his brother will point to heaven door, so he lied. That's why you take the other door.