Daily Brain Teasers for Monday, 24 February 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 495
NUMBERMANIA: Calculate the number 495 using numbers [6, 2, 2, 6, 27, 445] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If c9bb7 - c88ca = 5a6 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
Finally, the good-natured boss...
Finally, the good-natured boss was compelled to call Smith into his office.
"It has not escaped my attention," he pointed out, "that every time there's a home game at the stadium, you have to take your aunt to the doctor."
"You know you're right, sir," exclaimed Smith, "I didn't realize it. You don't suppose she's faking, do you?"
"It has not escaped my attention," he pointed out, "that every time there's a home game at the stadium, you have to take your aunt to the doctor."
"You know you're right, sir," exclaimed Smith, "I didn't realize it. You don't suppose she's faking, do you?"
Calculate the number 1532
NUMBERMANIA: Calculate the number 1532 using numbers [5, 9, 4, 2, 69, 426] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
RadioactivityIn 1896, Henri Becquerel read a report to the French Academy of Sciences of his investigation of the phosphorescent rays of some “double sulfate of uranium and potassium” crystals. He reported that he placed the crystals on the outside of a photographic plate wrapped in sheets of very thick black paper and exposed the whole to the sun for several hours. When he developed the photographic plate, he saw a black silhouette of the substance exposed on the negative. When he placed a coin or metal screen between the uranium crystals and the wrapped plate, he saw images of those objects on the negative. He did not yet know yet that the sun is not necessary to initiate the rays, nor did he yet realise that he had accidentally discovered radioactivity. He would learn more from a further accidental discovery on 26 Feb 1896. |
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (17, 19, 20, 22, 24, 25, 27, 33, 36, 41) 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 c14cb - b9962 = 1a2a 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
Calculate the number 1005
NUMBERMANIA: Calculate the number 1005 using numbers [2, 9, 6, 7, 19, 972] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 7a1b7 - c214a = c8a27 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
