Daily Brain Teasers for Sunday, 26 December 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If cc4c5 - c00b4 = c4a1 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 514
NUMBERMANIA: Calculate the number 514 using numbers [9, 2, 6, 3, 99, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania

Jimmie, an 80-year-old gentlem...
Jimmie, an 80-year-old gentleman, retired to Florida after his wife of 58 years had passed away. He was quite alone in the world and longed for companionship. One day, as he was walking through a public park, he spied what he considered to be a very pretty silver-haired lady sitting alone on a park bench. Getting his nerve up, he approached the lady and asked graciously, "Pardon me, ma'am, but may I sit here with you."
The silver-haired Marcia looked up to see a distinguished looking white-haired gentleman and replied, "Why certainly," and scooted over gently to give him room to sit down.
For the next two hours the two sat and talked about everything. They discovered that they came from the same part of the country, liked the same big band music, voted for the same presidential candidates, had long happy marriages and lost their spouses in the last year, and in general agreed about almost everything.
Finally, the old gentleman cleared his throat and asked sheepishly, "Ma' am, may I ask you two questions?"
With great anticipation Marcia replied, "Why certainly!"
The old gentleman removed a handkerchief from his coat pocket and spread it out on the ground before her. He very gingerly got down on one knee and looked her softly in the eyes.
"Marcia, I know we've only known each other for a couple of hours, but we have so much in common. I feel I have known you all my life. Will you marry me and be my wife?"
Marcia grabbed at Jimmie's hands and said, "Why, yes, I will marry you! You have made me so very happy!"
She reached over and kissed him gently on the cheek. Then Marcia said, "You said you had two questions to ask me. What is the second question?"
Jimmie scratched his neck and said, "Will you help me get up?"
The silver-haired Marcia looked up to see a distinguished looking white-haired gentleman and replied, "Why certainly," and scooted over gently to give him room to sit down.
For the next two hours the two sat and talked about everything. They discovered that they came from the same part of the country, liked the same big band music, voted for the same presidential candidates, had long happy marriages and lost their spouses in the last year, and in general agreed about almost everything.
Finally, the old gentleman cleared his throat and asked sheepishly, "Ma' am, may I ask you two questions?"
With great anticipation Marcia replied, "Why certainly!"
The old gentleman removed a handkerchief from his coat pocket and spread it out on the ground before her. He very gingerly got down on one knee and looked her softly in the eyes.
"Marcia, I know we've only known each other for a couple of hours, but we have so much in common. I feel I have known you all my life. Will you marry me and be my wife?"
Marcia grabbed at Jimmie's hands and said, "Why, yes, I will marry you! You have made me so very happy!"
She reached over and kissed him gently on the cheek. Then Marcia said, "You said you had two questions to ask me. What is the second question?"
Jimmie scratched his neck and said, "Will you help me get up?"
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (7, 8, 9, 13, 26, 28, 32, 40, 42, 44, 48) 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
RadiumIn 1898, Polish-French scientist Marie Sklodowska Curie discovered the radioactive element radium while experimenting with pitchblende, a common uranium ore. She had observed that this ore was more radioactive than refined uranium. This indicated that there must be another element, even more radioactive than uranium, mixed in with this ore. During the years between 1899 and 1902, Marie Curie dissolved, filtered and repeatedly crystallized nearly three tons of pitchblende. The goal of that work was a refined sample of the element - the yield was about 0.1 gram. This was enough for spectroscopic examination, and to determine the exact atomic weight of radium. This discovery, along with the element polonium, earned her a second Nobel Prize in 1911. |
Find number abc
If 788ac - a5aa9 = b3b9b 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 8275
NUMBERMANIA: Calculate the number 8275 using numbers [3, 6, 7, 8, 93, 579] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 75ccb + cbaca = a0a347 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 1179
NUMBERMANIA: Calculate the number 1179 using numbers [6, 4, 9, 9, 33, 231] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania