Daily Brain Teasers for Sunday, 02 February 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If cba33 - bc3ac = c0ba find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 345
NUMBERMANIA: Calculate the number 345 using numbers [9, 4, 3, 4, 18, 406] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Which broker...
After reading the morning headlines about the recent stock market downturn, a high-powered executive trying to impress a client in his office, flipped on his intercom switch and barked to his secretary, "Miss Hunter, get my broker!"
The client was impressed until he heard the secretary's clear voice saying, "Yes, Sir, stock or pawn?"
MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (1, 3, 6, 8, 10, 15, 19, 21, 25, 28, 54) 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.
#brainteasers #math #magicsquare
Ethyl gasolineIn 1923, the first sale* was made of anti-knock gasoline containing a tetra-ethyl lead compound. First sold at Willard Talbott's service station on S. Main Street in Dayton, Ohio, the fuel was called Ethyl (after its new additive, tetraethyl lead) and colored a distinctive red. This new formulation of ethyl gasoline was the the result of seven years of testing at least 33,000 compounds as additives to influence the combustion rate of the fuel. Previously, on hard acceleration, an engine sometimes made knocking, popping or crackling sounds. Knocking sapped power and could damage the engine. The suitability of tetra-ethyl lead, made from alcohol and lead, was the discovery of Thomas Midgely, Jr., of the General Motors Research Laboratories, located in Dayton. Decades later, the toxicity of the lead present in automobile emissions was recognized, and leaded gasoline is no longer sold.* |
Find number abc
If b5075 + 224ca = a0753c find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 5278
NUMBERMANIA: Calculate the number 5278 using numbers [5, 8, 8, 6, 84, 675] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If ba1b0 + 27b4c = 866ac find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 5447
NUMBERMANIA: Calculate the number 5447 using numbers [1, 3, 7, 9, 40, 496] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
