BRAIN TEASERS

# MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (17, 18, 20, 21, 27, 28, 38, 46, 49, 56, 83) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B*C.
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #magicsquare

### How Cold Is It Outside?

How Cold Is Cold?
60 Californians put on sweaters (if they can find one)
50 Miami residents turn on the heat
40 You can see your breath, Californians shiver uncontrollably, Minnesotans go swimming
35 Italian cars don't start
32 Water freezes
30 You plan your vacation to Australia
25 Boston water freezes, Californians weep pitiably, Minnesotans eat ice cream, Canadians go swimming
20 Politicians begin to talk about the homeless, New York City water freezes, Miami residents plan vacation further South
15 French cars don't start, Cat insists on sleeping in your bed with you
10 You need jumper cables to get the car going
5 American cars don't start
-10 German cars don't start, Eyes freeze shut when you blink
-15 You can cut your breath and use it to build an igloo, Arkansans stick tongue on metal objects, Miami residents cease to exist
-20 Cat insists on sleeping in pajamas with you, Politicians actually do something about the homeless, Minnesotans shovel snow off roof, Japanese cars don't start
-25 Too cold to think, You need jumper cables to get the driver going
-30 You plan a two week hot bath, Swedish cars don't start
-40 Californians disappear, Minnesotans button top button, Canadians put on sweaters, Your car helps you plan your trip South
-50 Congressional hot air freezes, Alaskans close the bathroom window
-80 Hell freezes over, Polar bears move South
-90 Lawyers put their hands in their own pockets
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### Andreas Marggraf

Died 7 Aug 1782 at age 73 (born 3 Mar 1709).Andreas Sigismund Marggraf was a German chemist who was a member of the Royal Academy of Science and Literature of Berlin. In 1747, Marggraf demonstrated that various kinds of beet-root contained sugar and that the sugar could be extracted and crystallized. This discovery, however, was regarded for many years as being merely a laboratory determination and without practical value. However, it led to the development of the modern sugar industry, when Franz Karl Achard, a pupil of Marggraf, attacked the problem of beet-root cultivation and succeeded in extracting sugar from beets on a greater scale.
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