If You Score 4/6 On This Brain Teasers Quiz, You Are Really Smart
This is an exercise in counting modulo 7. But even if you don't know what that means, you can solve the puzzle by first assuming that January 13 is a particular day of the week . Then February 13, March 13, etc. would be Wed, Wed, Sat, Mon, Thu, Sat, Tue, Fri, Sun, Wed, Fri. Since the most one day appears on this list is three times , we could shift so that there were three Friday the 13ths.
One carafe contains a liter of wine, another a liter of water.A spoonful of wine is moved from the wine carafe to the water carafe, and mixed in. A spoonful of the mixture is then moved from the water carafe to the wine carafe.There is now more water in wine carafeThere is the same in bothSame in both
It seems like since you transferred pure wine to the water and only a mixture back, there must be more wine in the water than water in the wine. But that can't be right, because then you would have increased the total amount of wine! No matter what you do, if you end with a liter of liquid in each carafe, there must be the same amount of wine in the water carafe as there is water in the wine carafe.
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