BRAIN TEASERS
Monthly Archive - April 2023

Monthly Archive - April 2023

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Find number abc

If 73a62 + 794b9 = bc248b find number abc. Multiple solutions may exist.
Correct answers: 6
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#brainteasers #math
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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.
Correct answers: 5
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 3639

NUMBERMANIA: Calculate the number 3639 using numbers [8, 6, 3, 9, 52, 537] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania

What Is It Like To You?

Mortal: What is a million years like to you?
God: Like one second.
Mortal: What is a million dollars like to you?
God: Like one penny.
Mortal: Can I have a penny?
God: Just a second.
Jokes of the day - Daily updated jokes. New jokes every day.
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (3, 6, 7, 8, 17, 30, 31, 32, 50, 53, 54, 55, 78) 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.
Correct answers: 1
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#brainteasers #math #magicsquare
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Find number abc

If ca661 - 544b8 = ac18a find number abc. Multiple solutions may exist.
Correct answers: 5
CHECK ANSWER
#brainteasers #math
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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.
Correct answers: 5
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2160

NUMBERMANIA: Calculate the number 2160 using numbers [1, 9, 2, 3, 53, 381] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If 188a6 + cb3c4 = 8a2cb find number abc. Multiple solutions may exist.
Correct answers: 2
CHECK ANSWER
#brainteasers #math
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Which is a winning combination of digits?

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.
Correct answers: 3
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4451

NUMBERMANIA: Calculate the number 4451 using numbers [9, 1, 3, 6, 28, 357] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
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Stanislao Cannizzaro

Born 13 Jul 1826; died 10 May 1910 at age 83. Italian chemist, teacher, and legislator who recognized the distinction between atomic and molecular weights. He discovered the Cannizzaro reaction in 1853, that treatment of benzaldehyde with a concentrated alcoholic hydroxide produced equal amounts of benzyl alcohol and the salt of benzoic acid. Earlier, in 1851, he helped prepare cyanamide, while at the laboratory of Michel-Eugène Chevreul. In 1858, he showed that the atomic weights of the elements in the molecules of a volatile compound can be calculated using Avogadro's principle. Further, the atomic weights of non-volatile compounds can be calculated by a measurement of specific heat instead of vapour density. Later, 1861-71, he studied aromatic compounds and amines.
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