BRAIN TEASERS
Math (page 23)

Math (page 23)

These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 221 to 230.
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Calculate the number 334

NUMBERMANIA: Calculate the number 334 using numbers [6, 4, 2, 4, 52, 926] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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Find number abc

If 81ac8 + 86a21 = 16ba59 find number abc. Multiple solutions may exist.
Correct answers: 0
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Calculate the number 319

NUMBERMANIA: Calculate the number 319 using numbers [6, 8, 3, 9, 44, 858] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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Cookies

An elderly man lay dying in his bed. In death's agony, he suddenly smelled the aroma of his favorite chocolate chip cookies wafting up the stairs. He gathered his remaining strength, and lifted himself from the bed.
Leaning against the wall, he slowly made his way out of the bedroom, and with even greater effort forced himself down the stairs, gripping the railing with both hands.
With labored breath, he leaned against the door frame, gazing into the kitchen. Were it not for death's agony, he would have thought himself already in heaven. There, spread out upon newspapers on the kitchen table were literally hundreds of his favorite chocolate chip cookies.
Was it heaven? Or was it one final act of heroic love from his devoted wife, seeing to it that he left this world a happy man?
Mustering one great final effort, he threw himself toward the table, landing on his knees in a rumpled posture. His parched lips parted; the wondrous taste of the cookie was already in his mouth; seemingly bringing him back to life. The aged and withered hand, shakingly made its way to a cookie at the edge of the table, when it was suddenly smacked with a spatula by his wife.

"Stay out of those," she said, "they're for the funeral.  

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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (2, 3, 4, 25, 26, 27, 42, 43, 44) 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: 0
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Find number abc

If 56b5c - baba5 = 26a54 find number abc. Multiple solutions may exist.
Correct answers: 1
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Calculate the number 7562

NUMBERMANIA: Calculate the number 7562 using numbers [7, 8, 5, 4, 15, 954] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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Find number abc

If a0a1a + b99ca = 140ba4 find number abc. Multiple solutions may exist.
Correct answers: 1
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Calculate the number 4066

NUMBERMANIA: Calculate the number 4066 using numbers [8, 2, 1, 9, 63, 350] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (3, 5, 6, 10, 12, 13, 18, 20, 21, 56, 66) 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If 84c0b - a1b69 = 5c4a8 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Bullets

In 1854, Horace Smith & Daniel Wesson were issued a U.S. patent for their design of a self-contained metal bullet cartridge (No. 11,496). The invention related to the arrangement of the tallow within the cartridge between the ball and charge of powder. The rimfire cartridge included percussion-priming. It was improved upon with patent No. 27,933 on 17 Apr 1860. Long before the U.S. civil war, Jean Samuel Pauly was granted a French patent in 1812 for a self-contained cartridge. By 1846, Lefaucheux had invented a pin fire cartridge and in 1851, Flobert created the rimfire cartridge. However, Smith and Wesson, could not produce a revolver to fire their new bullet until several years later when the Colt patent on the mechanically rotating cylinder design expired in 1857.«
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