BRAIN TEASERS
Monthly Archive - April 2026 (page 2)

Monthly Archive - April 2026 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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Calculate the number 2598

NUMBERMANIA: Calculate the number 2598 using numbers [3, 3, 7, 5, 55, 643] 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 c9abc - c4035 = 5a4a find number abc. Multiple solutions may exist.
Correct answers: 0
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: 0
CHECK ANSWER
#brainteasers #mastermind

Generation gap?

During one "generation gap" quarrel with his parents young Michael cried, "I want excitement, adventure, money, and beautiful women. I'll never find it here at home, so I'm leaving. Don't try and stop me!"

With that he headed toward the door. His father rose and followed close behind.

"Didn't you hear what I said? I don't want you to try and stop me."

"Who's trying to stop you?" replied his father. "If you wait a minute, I'll go with you."

Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 687

NUMBERMANIA: Calculate the number 687 using numbers [7, 6, 6, 8, 19, 125] 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 (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 72) 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
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#brainteasers #math #magicsquare
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Find number abc

If a6c46 - b4aa2 = 8bc54 find number abc. Multiple solutions may exist.
Correct answers: 0
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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1265

NUMBERMANIA: Calculate the number 1265 using numbers [7, 1, 5, 6, 55, 947] 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 68cc8 + 4ab95 = ba85cc find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

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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Fertilizer factory explosion

In 1921, a huge explosion at a fertilizer factory at Oppau, Germany, caused 500 deaths. Destruction at the site included hundreds of neighboring houses. The fertilizer made there since 1917 was a 50/50 mix of ammonium nitrate and ammonium sulphate. Storage silos reached up to a hundred feet high. This fertilizer had a tendency to form solid clumps. It had become routine to break it up ammonium sulphate with bulldozers and dynamite. The mixed fertilizer was not regarded as explosive because it was difficult to initiate and not experienced before in such circumstances. Dynamite used this time caused 4,500 tons of fertilizer to explode, creating a crater 250-ft diam. and 50-ft deep.«
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