BRAIN TEASERS

# MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (11, 12, 19, 21, 30, 31, 38, 61, 62, 69) 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

### Diagnose this patient

The psychology instructor had just finished a lecture on mental health and was giving an oral test.

Speaking specifically about manic depression, she asked, "How would you diagnose a patient who walks back and forth screaming at the top of his lungs one minute, then sits in a chair weeping uncontrollably the next?"

A young man in the rear raised his hand and answered, "A basketball coach?"

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### Wilbur Wright

Died 30 May 1912 at age 45 (born 16 Apr 1867). American inventor and aviator, who with his brother Orville, invented the first powered airplane, Flyer, capable of sustained, controlled flight (17 Dec 1903). Orville made the first flight, airborn for 12-sec. Wilbur took the second flight, covering 853-ft (260-m) in 59 seconds. By 1905, they had improved the design, built and and made several long flights in Flyer III, which was the first fully practical airplane (1905), able to fly up to 38-min and travel 24 miles (39-km). Their Model A was produced in 1908, capable of flight for over two hours of flight. They sold considerable numbers, but European designers became strong competitors. After Wilbur died of typhoid in 1912, Orville sold his interest in the Wright Company in 1915.«
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