Question: Two men walk into a bar. One man has a baseball hat, the other a cowboy hat. The one with the baseball hat walks up the the bartender, and says, "If I can shoot water out of this tube to a cup on the other side of the room, you have to give me a thousand dollars. If I miss, I give you a thousand dollars." The bartender agrees. The baseball hat man puts down a cup and goes to the other side of the room. He shoots water out of the tube, but sprays it everywhere. The bartender is than laughing. However, the baseball hat man is also laughing. The bartender asks, "Why are you laughing?" Why was the baseball hat man laughing?
Answer: Before they entered the bar, the baseball hat man told the cowboy hat man, "If I can spray water everywhere in the bar and make the bartender laugh, you have to give me ten thousand dollars."
Question: You have a glass of water that looks about half full. How can you tell, only using the glass of water itself, if the glass is half full or not?
The glass is a right cylinder.
Answer: Tip the glass of water until the water reaches the rim of the glass and if the water lines up perfectly with the bottom rim of the glass, it is half full.
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.