Logic

Logic

• A Bargain Hotel?

  

  Three Schlumberger employees, after a day of work in a remote location, arrived at a hotel to pass the night. read more  

• Asking for Directions

  

  What is the minimum number of questions you need to ask to find your way to this lighthouse? read more  

• The Commuter's Choice

  

  Mr. Tsuru commutes each day by train between his home and the downtown office building where he works.  read more  

• Find the Heavy Ball

  

  Leo has nine balls, all of the same size. Even though they all looked alike, he knows one of them is heavier than the rest.  read more  

• Measure Exactly 8 Liters of Water

  

  Can you measure out exactly 8 L of water? read more  

• Right Amount of Water

  

  Can you measure out exactly 4 L of water? You have three large jugs with capacities of 3, 5, and 8 Ls. read more  

• Telling Time with Fuses

  

  You have some fuses, each of which burns for exactly one hour, but unevenly; that is half a length of fuse does not necessarily burn for half an hour. read more  

• To Tell the Truth

  

  Can you figure out which company has the honest employees? read more  

• What Color Hat?

  

  Lucy had four hats, two red and two blue. She showed them to her three friends, then made them stand one behind another and shut their eyes.  read more  

• What's Wrong with This Picture?

  

  Jonathan Hare found this children’s board game called Snakes and Ladders.  read more  

• Which Coin Is Fake?

  

  Find which coin among a dozen is the fake. read more