#5. The world’s tallest skyscraper took 7 years to build, with workmen doubling the height each year. How many years did it take for the skyscraper to reach half of its maximum height?
#4. I have 10 or more daughters. I have less than 10 daughters. I have at least 1 daughter. If only 1 of these statements is true, how many daughters do I have?
#3. A boy and a girl are sitting on a bench. “I’m a girl,” says the child with brown hair. “I’m a boy,” says the child with blond hair. If at least one of them is lying, which one is lying, or are they both lying?
#2. My daughter has many sisters. She has as many sisters as she has brothers. Each of her brothers has twice as many sisters as brothers. How many sons and daughters do I have?
#1. Three closed boxes have either white marbles, black marbles or both, and they are labeled white, black and both. However, all three boxes are mislabeled. You may reach into one of the boxes and pull out only one marble.
Which box should you remove a marble from to determine the contents of all three boxes?
Come back again for more riddles like these!
