Tag: math & puzzles

"There are 3 triplet brothers. They look identical. The oldest is John, he always tells the truth. The second is Jack, he always tells a lie. The third is Joe, he either tells the truth or a lie. Jimmie Dean went to visit them one day. He was wondering who was who. So he asked each person a question. He asked the one who was sitting on the left: ""Who is the guy sitting in the middle?"". The answer was ""He is John."" He asked the one who was sitting in the middle: ""What is your name?"". The answer was ""I am Joe."" He asked the one who was sitting on the right: ""What is the guy sitting in the middle?"". The answer was ""He is Jack."" Jimmie Dean got really confused. Basically, he asked 3 same questions, but he got 3 different answers. Would you find out who is who for Jimmie?"

"Jimmie Dean visited an island. There were 2 tribes living on this island. The east tribal people always tell a lie. The west tribal people always tell the truth. Jimmie Dean saw a guy passing him. He asked the tour guide to ask that guy where he lives. The tour guide asked the guy and came back with the answer: he lives over west. Did the tour guide tell the truth or tell a lie?"

"There are 3 boxes labeled as box A, box B, and box C. Only one box has the gift you wanted, the other 2 are empty. Assume you pick the box A, you will have one third (1/3) of chance to win the gift. If I open the box B and show you the box B is empty, do you want to exchange your Box A for Box C in order to get a better chance to win? "

"A six digit number 312132 has two 1's, two 2's and two 3's. This number has a very interesting attribute: 1 digit exists between two 1s, 2 digits exist between two 2's and 3 digits exist between two 3s. Can we add two more 4s to become an eight digit number and still holding the above attributes plus 4 digits exist between two 4s? "

"I visited my math teacher last February. My teacher told me there were 3 groups of students came to his house on that day already. He also told me each group had different numbers of students. He said it was a coincidence that the product of the numbers of students in each group was equal to the visiting date (today’s date). He asked me if I knew how many people came in each group I looked at the calendar and found out that there might be 4 possible answers. So I asked my teacher a question. He replied: No. Then I gave him the correct answer. How many people came in each group? ‘Do you consider 1 person as a group?’ My teacher said: No. Do you know on what date I visited my teacher?"

"There were 2 tribes living on an island. The east tribal people always tell a lie. The west tribal people always tell the truth. Alan and Bryan came from the same tribe. However, we do not know which tribe they came from. When they were asked the marital status, Alan said: “Both of us are married.” But Bryan said: “I am not married”. Are they really married? "