Daily Brain Teasers for Friday, 06 December 2019
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 1651
NUMBERMANIA: Calculate the number 1651 using numbers [7, 2, 6, 1, 73, 614] 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 (5, 16, 17, 20, 24, 25, 28, 34, 39, 40, 43, 55) 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 6b59c - 169ac = c6670 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
April Fool's Day - Serve a dessert grilled cheese
Serve a dessert grilled cheese. Your kids won’t be mad at you when they realize they get to eat poundcake and frosting.
What a winning 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
Edison's first sound recordingIn 1877, Thomas Edison demonstrated the first sound recording, reciting “Mary had a Little Lamb” at his Menlo Park Laboratory, making the first surviving recording of the human voice. (The word “Halloo” may have been recorded in July on an early paper model derived from his 1876 telegraph repeater, but the paper has not survived). John Kruesi built this first practical machine 1-6 Dec, from a sketch given to him by Edison that was made 29 Nov (not on “Aug. 12” that Edison mistakenly wrote on another sketch in 1917). When Kruesi heard Edison's first words 6 Dec, he exclaimed “Gott in Himmel!” (“God in Heaven”). Edison was granted patent 200,521 on 19 Feb 1878. |
Calculate the number 613
NUMBERMANIA: Calculate the number 613 using numbers [2, 8, 9, 4, 39, 538] 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 76a8a + 97b82 = 17a86c 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 2151
NUMBERMANIA: Calculate the number 2151 using numbers [3, 7, 2, 1, 58, 420] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Fazil Hashim.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A+B+C
The aim is to place the some numbers from the list (13, 14, 22, 30, 31, 39, 72, 73, 81, 86) 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 Fazil Hashim.
#brainteasers #math #magicsquare
Find number abc
If 6c533 - b33a0 = 44153 find number abc. Multiple solutions may exist. The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math
