Daily Brain Teasers for Friday, 13 December 2019
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 1033
NUMBERMANIA: Calculate the number 1033 using numbers [2, 8, 5, 9, 71, 992] 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 (4, 6, 7, 8, 10, 11, 28, 69, 71, 72, 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 81b77 - 6cba6 = 160c1 find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
A grocer put up a sign that re...
A grocer put up a sign that read "Eggplants, 25 cents each — three for a dollar."
All day long, customers came in exclaiming: "Don't be ridiculous! I should get four for a dollar!"
Meekly the grocer agreed and packaged four eggplants. The tailor next door had been watching these antics and finally asked the grocer, "Aren't you going to fix the mistake on your sign?"
"What mistake?" the grocer asked. "Before I put up that sign no one ever bought more than one eggplant."
All day long, customers came in exclaiming: "Don't be ridiculous! I should get four for a dollar!"
Meekly the grocer agreed and packaged four eggplants. The tailor next door had been watching these antics and finally asked the grocer, "Aren't you going to fix the mistake on your sign?"
"What mistake?" the grocer asked. "Before I put up that sign no one ever bought more than one eggplant."
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
Sir William McCreaBorn 13 Dec 1904; died 25 Apr 1999 at age 94. 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.« |
Calculate the number 678
NUMBERMANIA: Calculate the number 678 using numbers [7, 1, 1, 2, 82, 603] 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 caabc - 4caba = 32aac find number abc. Multiple solutions may exist. The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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
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
