BRAIN TEASERS
The Most Difficult Tasks (page 690)

The Most Difficult Tasks (page 690)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 6891 to 6900.
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Calculate the number 24

Calculate the number 24 using numbers [1, 3, 4, 6] and basic arithmetic operations (+, -, *, /). Each of the numbers must be used only once.
Correct answers: 70
The first user who solved this task is Sanja Šabović.
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#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: 70
The first user who solved this task is Sanja Šabović.
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#brainteasers #mastermind
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Remove 5 letters from this seq...

Remove 5 letters from this sequence (KOCAMOEIORA) to reveal a familiar English word.
Correct answers: 71
The first user who solved this task is Thinh Ddh.
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#brainteasers #wordpuzzles

Build Me a Bridge

A man walking along a California beach was deep in prayer. Suddenly the sky clouded above his head and, in a booming voice, the Lord said, "Because you have TRIED to be faithful to me in all ways, I will grant you one wish."
The man said, "Build a bridge to Hawaii so I can drive over anytime I want."The Lord said, "Your request is very materialistic. Think of the enormous challenges for that kind of undertaking. The supports required to reach the bottom of the Pacific! The concrete and steel it would take! It will nearly exhaust several natural resources. I can do it, but it is hard for me to justify your desire for worldly things. Take a little more time and think of something that would honor and glorify me."
The man thought about it for a long time. Finally he said, "Lord, I wish that I could understand my wife. I want to know how she feels inside, what she's thinking when she gives me the silent treatment, why she cries, what she means when she says ‘nothing's wrong,’ and how I can make a woman truly happy."
The Lord replied, "You want two lanes or four on that bridge?"
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Find number abc

If b4b62 + 8ba6a = 11c422 find number abc. Multiple solutions may exist.
Correct answers: 71
The first user who solved this task is Maja Nikolic.
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#brainteasers #math
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Find number abc

If 9c5cc - ac309 = 30ba8 find number abc. Multiple solutions may exist.
Correct answers: 71
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Remove 4 letters from this seq...

Remove 4 letters from this sequence (PRASCTBBICEH) to reveal a familiar English word.
Correct answers: 71
The first user who solved this task is On On Lunarbasil.
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#brainteasers #wordpuzzles
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Can you name the athletes by the picture?

Can you name the athletes by the picture?
Correct answers: 71
The first user who solved this task is Donya Sayah30.
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#brainteasers #riddles #sport
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Chess Knight Move

Find the country and its capital city, using the move of a chess knight. First letter is G. Length of words in solution: 7,6.
Correct answers: 71
The first user who solved this task is On On Lunarbasil.
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#brainteasers #wordpuzzles #chessknightmove
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What is hidden in the picture?

What is hidden in the picture?
Correct answers: 71
The first user who solved this task is Donya Sayah30.
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#brainteasers #riddles
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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: 71
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #mastermind
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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.
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Robert Stephenson

Died 12 Oct 1859 at age 55 (born 16 Oct 1803). Outstanding English Victorian civil engineer, (son of George Stephenson) and builder of many long-span railroad bridges, most notably the tubular Britannia Bridge over the Menai Strait, North Wales. After serving as as a mine supervisor in Colombia (1824-7) he managed Robert Stephenson and Company, manufacturers of locomotives, which was founded in 1823 by his father. Their first engine, the Lancashire Witch (1828) had inclined cylinders that were connected directly to crank pins on the wheels and was a direct predecessor to the famous Rocket (1829) which began the century of the steam locomotive. He built the world's first intercity passenger railway operated solely by steam locomotives (1830) between Liverpool and Manchester.
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