Daily Brain Teasers for Monday, 15 November 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 9703
NUMBERMANIA: Calculate the number 9703 using numbers [9, 7, 1, 4, 45, 953] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 87c7a - 8c824 = cbb2 find number abc. Multiple solutions may exist.
#brainteasers #math
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.
#brainteasers #mastermind
Who was it?
She left him on the sofa when the phone rang, and was back in a few seconds.
"Who was it?" he asked.
"My husband," she replied.
"I better get going," he said. "Where was he?"
"Relax. He's downtown playing poker with you."
Calculate the number 958
NUMBERMANIA: Calculate the number 958 using numbers [4, 3, 9, 6, 31, 552] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Alkaline dry-cell patentIn 1960, a U.S. patent was issued for an alkaline dry-cell to P.A. Marsal, Karl Kordesch and Lewis F. Urry who assigned it to the Union Carbide Corporation, the manufacturer of Eveready batteries (No. 2,960,558). Compared to the existing carbon-zinc dry-cells, it offered an appreciable increase in life-span and efficiency during heavy continuous drains. Its construction used an alkaline electrolyte, manganese dioxide as depolarizer, a zinc powder-gel anode, and certain additives such including mercury and electrolyte-creep inhibitors. The patent gave practical details for commercial production. The patent claimed that whereas four cells in series of the carbon-zinc type gave 4.5 volts to power a 1.25-amp bulb for 45-min to 1-hr, the new alkaline design gave good brilliance after 6 to 7 hours.« |
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (5, 9, 10, 16, 20, 21, 22, 26, 27, 40) 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 caa3c - 5ab5a = 4b187 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 5225
NUMBERMANIA: Calculate the number 5225 using numbers [5, 3, 1, 6, 25, 656] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
Find number abc
If 30843 - a0a4c = 20c9b 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
