BRAIN TEASERS

# MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (11, 12, 18, 19, 22, 29, 47, 48, 58, 67, 93) 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 Djordje Timotijevic.
#brainteasers #math #magicsquare

Patrick walks into a bar in Dublin, orders three pints of Guinness and sits in the corner of the room, drinking a sip out of each pint in turn. When he had finished all three, he went back to the bar and ordered three more.

The barman says, “You know a pint goes flat soon after I pull it . Your pints would taste better if you bought one at a time.”

Patrick replies, “Well now, I have two brodders, one is in America and de odder in Australia and here I am in Dublin . When we all left home, we promised dat we’d drink dis way to remember de days we all drank togedder.”

The barman admits that this is a nice custom and says no more.

Patrick becomes a regular customer and always drinks the same way … ordering three pints and drinking a sip out of each in turn, until they are finished. One day, he comes in and orders just two pints. All the other regulars in the bar notice and fall silent. When he goes back to the bar for the second round, the barman says, "I don’t want to intrude on your grief but I wanted to offer my condolences on your great loss." Patrick looks confused for a moment, then the penny drops and he starts to laugh, “Oh no,” he says,

Bejesus, everyone is fine! Tis me … I’ve quit drinking!”

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### Sir William McCrea

Died 25 Apr 1999 at age 94 (born 13 Dec 1904). Sir William Hunter McCrea was an Irish theoretical astrophysicist whose early work was in quantum physics, relativity and pure mathmatics, but he gradually turned to applying theoretical physics in astronomy. He ranged from considering the stellar atmospheres, planet formation, cosmology and indeed, the formation of stars and the universe. He was an early advocate that stars have a high hydrogen content. He studied gas dynamics, as in the formation of hydrogen in molecular form in dusty interstellar clouds, and developed a theory of the transition from increasing density to conditions sufficient for gravitational collapse and possible star formation. Although he at first was open-minded to the steady state theory of the universe proposed by Hermann Bondi, Thomas Gold and Fred Hoyle, McCrea's work and others accumulated evidence for the Big Bang theory.«
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