BRAIN TEASERS
Monthly Archive - May 2017 (page 10)

Monthly Archive - May 2017 (page 10)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 91 to 100.
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Remove 6 letters from this seq...

Remove 6 letters from this sequence (DPRKFIOVKIDINGS) to reveal a familiar English word.
Correct answers: 42
The first user who solved this task is Manguexa Wagle.
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#brainteasers #wordpuzzles
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Calculate the number 2632

NUMBERMANIA: Calculate the number 2632 using numbers [7, 5, 1, 1, 29, 326] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 25
The first user who solved this task is Thinh Ddh.
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#brainteasers #math #numbermania
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Channel tunnel proposed

In 1855, a proposal for a tunnel under the English Channel was reported in the New York Daily Times, which, according to French engineer M. Loèpold Favre, would in five years connect Boulogne to Dover. The 18½ mile (30-km) tunnel under the Channel would also need about 1½ mile (2-km) under the shores for each approach at the ends. Excavated at no less than 82-ft (25-m) below the sea bed, the tunnel would be lined with a double arch: one of granite and impermeable cement and an inner arch of thin, iron plates with perforations to reveal even slight leakage. Instead of smoke-producing locomotives, an atmospheric railway using a compressed air tube would carry passengers and freight such as coal. Ventilation shafts would rise above the highest water level in islands formed by excavated rock.«
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