BRAIN TEASERS
Monthly Archive - November 2026 (page 2)

Monthly Archive - November 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 368

NUMBERMANIA: Calculate the number 368 using numbers [8, 4, 1, 9, 84, 123] 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 715bc - 4ac7c = c8cab find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Mars satellite

In 1971, Mariner-9, the first man-made object to orbit another planet, entered Martian orbit. The mission of the unmanned craft was to return photographs mapping 70% of the surface, and to study the planet's thin atmosphere, clouds, and hazes, together with its surface chemistry and seasonal changes.
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