Daily Brain Teasers for Wednesday, 21 February 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If b88a9 - c690a = cc9a4 find number abc. Multiple solutions may exist.
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.
Calculate the number 725
NUMBERMANIA: Calculate the number 725 using numbers [4, 3, 1, 5, 75, 121] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Rider
After a round of golf, four ladies sat around the club house, chatting.
Seeing the ladies, the Pro approached them and asked: "How did your game go?
The first lady, a brunette, said she had a good round ... making the comment that she actually had 25 riders. The Pro was a bit perplexed not knowing what a "Rider" was.
The second was a blonde lady who quickly chimed in and said that she had a very good round as well with 16 riders.
The third lady then said that her round was average and that she only had 10 riders.
The fourth lady admitted that she played the worst round of the day and that she only had 2 riders all day long.
The Pro was completely confused not knowing what the term "rider" meant. But, because he didn't want to look dumb, he made a quick polite remark, wished the ladies well and then left.
He then approached the bartender and asked "Hey, can you tell me what these ladies are talking about when they refer to "Riders"?"
The bartender simply smiled and said..."A 'Rider" is when you hit a shot long enough to ride on the golf cart to your ball.
Find number abc
If aaac7 + 2ab86 = 6880b find number abc. Multiple solutions may exist.
August von WassermannBorn 21 Feb 1866; died 16 Mar 1925 at age 59.German bacteriologist whose discovery of a universal blood-serum test (1906) for syphilis helped extend the basic tenets of immunology to diagnosis. "The Wassermann reaction," in combination with other diagnostic procedures, is still employed as a reliable indicator for the disease. A positive reaction when the blood or spinal fluid of the patient is tested indicates the presence of antibodies formed as a result of infection with syphilis (even though symptoms of the disease may not be observable at the time). A few other diseases, however (such as leprosy), also sometimes produce a positive Wassermann reaction. In addition, he developed inoculations against cholera, typhoid, and tetanus. He was a student of bacteriologist Robert Koch. |
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.
Calculate the number 983
NUMBERMANIA: Calculate the number 983 using numbers [4, 4, 9, 9, 73, 910] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (13, 17, 18, 20, 22, 24, 26, 28, 30, 62, 64, 70) 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.
Find number abc
If ac40c + a24a0 = 18b8ac find number abc. Multiple solutions may exist.
Calculate the number 759
NUMBERMANIA: Calculate the number 759 using numbers [9, 2, 3, 8, 88, 968] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If aa65b - c8564 = 509a find number abc. Multiple solutions may exist.