Daily Brain Teasers for Friday, 24 January 2020
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 9159
NUMBERMANIA: Calculate the number 9159 using numbers [9, 7, 9, 8, 78, 534] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (10, 12, 16, 29, 31, 35, 62, 64, 68, 75) 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 Nasrin 24 T.
#brainteasers #math #magicsquare
Find number abc
If 3a42a + c4ac0 = 10bbba find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math

The Unacceptable Tax Return
This example shows the importance of accuracy when submitting your tax return. The IRS returned the Tax Return submitted by a New York City man implying that he answered one of the questions incorrectly.
In response to the question, 'List your dependents”, you wrote: '12.1 million illegal immigrants, 1.1 million crack-heads, 4.4 million unemployed deadbeats, 80,000 criminals in over 85 prisons, at least 450 idiots in Congress and those who call themselves Politicians.' The IRS responded that “this is unacceptable!”
The man's response to the IRS was: 'Who did I leave out?'
Find the right combination
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Solar eclipse movieIn 1925, a motion picture of a solar eclipse was taken by the U.S. Navy from the dirigible Los Angeles. The craft was at an elevation of about 4,500-ft and positioned about 19 miles east of Montauk Point, Long Island, NY. This give a view of a total eclipse of the sun that lasted just over 2-min. Four astronomical cameras and a spectrograph were used as well as two moving picture cameras. This was the first time in the U.S. that a dirigible had been used as a platform for observation of a total eclipse of the sun. The first U.S. attempt to photograph one from an aircraft 10 Sep 1923 was unsuccesful due to cloudy conditions, but on 28 Apr 1930, a flight over California sponsored by the U.S. Naval Observatory recorded a total solar eclipse. |
Calculate the number 1015
NUMBERMANIA: Calculate the number 1015 using numbers [2, 1, 8, 9, 84, 933] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
Find number abc
If 72315 + 131c1 = c5b9a find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Which is a winning combination of digits?
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Calculate the number 511
NUMBERMANIA: Calculate the number 511 using numbers [4, 1, 3, 7, 78, 597] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (10, 12, 13, 15, 16, 21, 24, 50, 51, 59, 78) 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 Nasrin 24 T.
#brainteasers #math #magicsquare
Find number abc
If cbca3 - a7373 = 38ab0 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math