BRAIN TEASERS
The Most Difficult Tasks (page 375)

The Most Difficult Tasks (page 375)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 3741 to 3750.
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Calculate the number 407

NUMBERMANIA: Calculate the number 407 using numbers [4, 3, 4, 8, 36, 299] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 27
The first user who solved this task is Eugenio G. F. de Kereki.
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#brainteasers #math #numbermania
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Replace asterisk symbols with ...

Replace asterisk symbols with a letters (GE*R** ********) and guess the name of musician. Length of words in solution: 6,8.
Correct answers: 27
The first user who solved this task is H Tav.
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#brainteasers #music
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Find a famous person

Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 7,4.
Correct answers: 27
The first user who solved this task is Manguexa Wagle.
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#brainteasers #wordpuzzles

Meeting the Parents

A girl invites her boyfriend over for dinner with her parents. Since this is such a big event, the girl tells him that after dinner she wants to have sex with him for the first time.
The boy is ecstatic, but nervous because hes a virgin. He goes to the pharmacy to get some condoms. He tells the pharmacist his situation and asks for advice. The pharmacist tells him everything there is to know about sex. At the register, the pharmacist asks how many condoms hed like to buy: a 3-pack or a 10-pack. The boy says he feels lucky and insists on the 10-pack.
That night, the boy shows up for dinner a little late. His girlfriend meets him at the door leads him straight to the dinner table where her parents are already seated. The boy sits down, quickly offers to say grace and bows his head. A minute passes, and the boy is still silent with his head down. Five minutes pass, and still no movement from the boy. Finally, after 10 minutes, the girlfriend leans over and whispers to the boy, I had no idea you were this religious.
The boy turns and whispers back, I had no idea your father was a pharmacist.
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Can you name the athletes by the picture?

Can you name the athletes by the picture?
Correct answers: 27
The first user who solved this task is Manguexa Wagle.
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#brainteasers #riddles #sport
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Find a famous person

Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 5,6.
Correct answers: 27
The first user who solved this task is Manguexa Wagle.
CHECK ANSWER
#brainteasers #wordpuzzles
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (15, 17, 19, 25, 31, 33, 35, 65, 67, 69, 74) 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.
Correct answers: 27
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #magicsquare
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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (3, 4, 5, 7, 8, 9, 55, 56, 57, 58, 85) 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.
Correct answers: 27
The first user who solved this task is Eugenio G. F. de Kereki.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find a famous person

Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 5,6.
Correct answers: 27
The first user who solved this task is On On Lunarbasil.
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#brainteasers #wordpuzzles
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Look carefully the picture a...

Look carefully the picture and guess the game name.
Correct answers: 27
The first user who solved this task is Vladimir Krnac.
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#brainteasers #games
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Calculate the number 3315

NUMBERMANIA: Calculate the number 3315 using numbers [8, 8, 7, 3, 98, 572] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 27
The first user who solved this task is Eugenio G. F. de Kereki.
CHECK ANSWER
#brainteasers #math #numbermania
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Jean-Robert Argand

Born 18 Jul 1768; died 13 Aug 1822 at age 54.Swiss accountant and mathematician who was one of the earliest to use complex numbers, which he applied to show that all algebraic equations have roots. His name is associated with the Argand diagram, a geometrical representation of complex numbers as points in a Cartesian plane, with the real portion of the number on the x axis and the imaginary part on the y axis. He self-published this concept in an anonymous monograph (1806). Though talented in mathematics, he remained an amateur; his livelihood was asan accountant and bookkeeper. Although Argand's name became associated with this idea, the geometrical interpretation of complex numbers appeared earliest in work by Caspar Wessel (1787), first presented on 10 Mar 1797 to a the Royal Danish Academy of Sciences and published in 1799.«
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