Daily Brain Teasers for Thursday, 18 September 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (3, 5, 6, 10, 12, 13, 18, 20, 21, 56, 66) 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
Find number abc
If 84c0b - a1b69 = 5c4a8 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
Degrees
The graduate with a science degree asks,
'Why does it work?'
'Why does it work?'
The graduate with an engineering degree asks,
'How does it work?'
The graduate with an accounting degree asks,
'How much will it cost?'
The graduate with a liberal arts degree asks,
'Do you want fries with that?'
Calculate the number 786
NUMBERMANIA: Calculate the number 786 using numbers [5, 1, 8, 1, 29, 588] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Sir John Graham KerrBorn 18 Sep 1869; died 21 Apr 1957 at age 87.English embryologist whose research advanced knowledge of the evolution of vertebrates. He also promoted ideas in naval camouflage for WWI. Early in his career, pursuing his zoological interests, Kerr went on two expeditions to the Pilcomayo River in South America. Much of his subsequent research was based on samples collected during these expeditions. In a letter to Winston Churchill, dated 24 Sep 1914, he referred to observing animal camouflage in South America, and recommended painting war ships with graduated shading. He also communicated with Ernest Bevin and Clement Atlee and others concerning camouflage. Although sometimes credited with invention of the dazzle scheme of camouflage, his ideas were less extreme.« |
Find number abc
If abccc - b599b = 3ac5b 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 6662
NUMBERMANIA: Calculate the number 6662 using numbers [6, 8, 1, 4, 33, 934] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (6, 11, 12, 24, 29, 30, 35, 40, 41, 52) 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
Find number abc
If 67333 - b835b = a898c 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
