BRAIN TEASERS
Monthly Archive - July 2023

Monthly Archive - July 2023

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 5166

NUMBERMANIA: Calculate the number 5166 using numbers [8, 4, 2, 5, 28, 503] 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 bb5ca + 30cb0 = cba5a find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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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.
Correct answers: 3
CHECK ANSWER
#brainteasers #mastermind

What do you call a t...

“What do you call a tissue that is sleeping? A napkin.”

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Calculate the number 700

NUMBERMANIA: Calculate the number 700 using numbers [4, 6, 2, 9, 16, 822] 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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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (6, 16, 17, 18, 19, 24, 26, 37, 51, 52, 59, 99) 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: 3
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#brainteasers #math #magicsquare
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Find number abc

If cb293 - c0c77 = 5a1b find number abc. Multiple solutions may exist.
Correct answers: 1
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: 2
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 739

NUMBERMANIA: Calculate the number 739 using numbers [2, 4, 6, 5, 69, 169] 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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Find number abc

If b2cc4 - 28b2b = 33a28 find number abc. Multiple solutions may exist.
Correct answers: 1
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: 2
CHECK ANSWER
#brainteasers #mastermind
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Photographic patent

In 1840, the first U.S. photographic patent was issued to Alexander S. Wolcott of New York City (No. 1,582). His "method of taking a likeness by means of a concave reflector and plates so prepared that luminous or other rays will act thereon" produced photographs 1.75 x 2.5 inches in size. They were not reversed as were daguerrotype which used refracting lenses.
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