Math Puzzles Logic

• A Bargain Hotel?

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

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

• The Commuter's Choice

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

• 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.

• Measure Exactly 8 Liters of Water

Can you measure out exactly 8 L of water?

• 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.

• 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.

• To Tell the Truth

Can you figure out which company has the honest employees?

• 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.

• What's Wrong with This Picture?

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

• Which Coin Is Fake?

Find which coin among a dozen is the fake.