Daily Brain Teasers for Monday, 07 November 2022
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 5267
NUMBERMANIA: Calculate the number 5267 using numbers [3, 7, 3, 9, 40, 762] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If aa226 - ba40a = 3c82b 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.
The test
Two young engineers applied for a single position at a computer company.
They both had the same qualifications. In order to determine which individual to hire, the applicants were asked to take a test by the Department manager.
Upon completion of the test, both men missed only one of the questions.
The manager went to the first applicant and said, "Thank you for your interest, but we've decided to give the job to the other applicant."
"And why would you be doing that? We both got 9 questions correct," asked the rejected applicant.
"We have based our decision not on the correct answers, but on the question you missed," said the Department manager.
"And just how would one incorrect answer be better than the other?" the rejected applicant inquired.
"Simple," said the Department manager, "Your fellow applicant put down on question #5, 'I don't know.' You put down, 'Neither do I.'"
Calculate the number 4141
NUMBERMANIA: Calculate the number 4141 using numbers [4, 9, 1, 6, 45, 776] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Thomas BrasseyBorn 7 Nov 1805; died 8 Dec 1870 at age 65.Early English railway contractor who built railway lines worldwide. While working as a land surveyor he and George Stephenson became friends. In 1834, Stephenson helped Brassey to obtain a contract to build a railway viaduct at Bromborough. In 1835, he constructed a section of the Grand Junction railway and later helped complete the London and Southampton line. With W. Mackenzie, he built the Paris to Rouen line (1841-43) and lines in Netherlands, Italy, Prussia, Spain. With Sir S.M. Peto and E.L. Betts, Brassey built the Grand Trunk railway, Canada (1853-59), the Crimean railway (1854); and also built in India, Australia and South America. He built more than 10,000 km (6,500 miles) of railways worldwide, including one-sixth of the British network. |
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (4, 16, 17, 19, 22, 23, 25, 44, 45, 47, 50, 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 ac9b8 - 4914b = 2aac8 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 9040
NUMBERMANIA: Calculate the number 9040 using numbers [1, 3, 9, 7, 53, 986] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 88502 + bb0b8 = ca5580 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.
