Daily Brain Teasers for Tuesday, 13 July 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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 744
NUMBERMANIA: Calculate the number 744 using numbers [6, 7, 3, 5, 80, 294] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If 9a83c + c3823 = ba86c8 find number abc. Multiple solutions may exist. 
Under negotiations
An elderly married couple was traveling by car on a road trip. After almost 11 hours on the road, they were too tired to continue and decided to take a room. But they only planned to sleep for four hours and then get back on the road. When they checked out four hours later, the desk clerk handed them a bill for $350.00.
The husband exploded and demanded to know why the charge was so high. He told the clerk that though it's a nice hotel, the rooms certainly aren't worth $350.00 for four hours. The clerk nodded and told him that $350.00 is the “standard rate.” The husband wasn’t happy with the explanation and insisted on speaking to the manager.
The manager appeared, listened to him and then explained that the hotel has an Olympic-sized pool and a huge conference centre that were available for them to use.
“But we didn't use them," the husband said.
''Well, they are here, and you could have," explained the manager. The manager went on to explain that the couple could also have taken in one of the shows for which the hotel is famous. "We have the best entertainers from New York, Hollywood and Las Vegas here," he said.
"But we didn't go to any of those shows," the husband said.
"Well, we have them, and you could have," the manager replied. No matter what amenity the manager mentioned, the husband replied: "But we didn't use it!"
The manager was unmoved and eventually the husband gave up and agreed to pay. As he didn't have the checkbook he asked his wife to write the check. She did and gave it to the manager. The manager was surprised when he looked at the check.
"But ma'am, this is only made out for $50.00," he said.
''That's correct. I charged you $300.00 for sleeping with me," she replied.
"But I didn't!" exclaimed the manager.
"Well, too bad. I was here, and you could have."
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. Gabriel LippmannDied 13 Jul 1921 at age 75 (born 16 Aug 1845). Gabriel Jonas Lippmann was a French physicist who wasawardedthe Nobel Prize for Physics in 1908 for producing the first colour photographic plate. Lippmann was a giant of his day in classical physics research, especially in optics and electricity. He worked in Berlin with the famed Hermann von Helmholtz before settling in Paris to head (in 1886) the Sorbonne's Laboratories of Physical Research until his death. His inventions include an instrument for precisely measuring minute differences in electrical power and the “coleostat”for steady, long-exposure sky photography. |
Calculate the number 770
NUMBERMANIA: Calculate the number 770 using numbers [7, 1, 6, 2, 95, 397] 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 (10, 11, 14, 15, 18, 22, 23, 25, 34, 38, 39) 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 7aacc - 265b8 = a79b3 find number abc. Multiple solutions may exist. Calculate the number 2487
NUMBERMANIA: Calculate the number 2487 using numbers [7, 2, 5, 3, 38, 152] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If c87a2 + ac9ba = 6b6a6 find number abc. Multiple solutions may exist. 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. 
