BRAIN TEASERS
Monthly Archive - June 2026 (page 3)

Monthly Archive - June 2026 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1689

NUMBERMANIA: Calculate the number 1689 using numbers [5, 3, 1, 1, 28, 559] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If c9b81 + 9baca = 1ca8ab find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math

The Wedding Ring

Daughter: My fiancé said I could have whatever I wanted to be inscribed on his wedding ring. What should I put?
Mother: Put what I put on your father's wedding ring.
Daughter: What does it say. I've never seen daddy with it off.
Mother: Yes. It's worked very well over the years. It says, 'Put it back on!'

Jokes of the day - Daily updated jokes. New jokes every day.
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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1346

NUMBERMANIA: Calculate the number 1346 using numbers [1, 3, 8, 5, 91, 479] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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 (5, 6, 11, 13, 14, 19, 29, 31, 32, 37) 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If c708b - 78aa0 = 1886b find number abc. Multiple solutions may exist.
Correct answers: 0
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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1421

NUMBERMANIA: Calculate the number 1421 using numbers [9, 4, 1, 2, 74, 383] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Wilbur Olin Atwater

Died 22 Sep 1907 at age 63 (born 3 May 1844). American agricultural chemist who developed agricultural chemistry. Atwater received his PhD from Yale in 1869 for studies on the chemical composition of corn. At Wesleyan College in Connecticut, USA, he studied the effects of fertilizers in farming and established the first agricultural experimental station in the US at Wesleyan in 1875 (which in 1877 became part of the famous Sheffield Scientific School at Yale University). From 1879 to 1882 Atwater determined the chemical composition and nutritive values of fish and animal tissues. During his life, he completed more than 500 energy-balance experiments. They confirmed that the law of conservation of energy governed transformation of matter in both the human body and inanimate world.
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