BRAIN TEASERS
Brain Teasers (page 774)

Brain Teasers (page 774)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 7731 to 7740.
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Calculate the number 1540

NUMBERMANIA: Calculate the number 1540 using numbers [1, 8, 5, 1, 60, 165] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 45
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Find the area of the shaded figure

Express result to the accuracy of 3 decimal.
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Which number should replace the question mark?

FUNNY MATH: Which number should replace the question mark?
Correct answers: 37
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #riddles

Friendship is

Friendship is,
Secretly giving people nicknames so only we know who we are talking about, Always knowing what the other is thinking, Annoying each other and thoroughly enjoying it, Being each other's therapist, Sharing every little detail about every little thing,  Not being able to wait to tell each other stuff, Never getting bored with each other's blabber.
Jokes of the day - Daily updated jokes. New jokes every day.
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CINEMANIA: Guess the movie title

Two Western bank/train robbers flee to Bolivia when the law gets too close. Film was made in 1969.
Correct answers: 57
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #movie #film #cinemania
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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: 65
The first user who solved this task is Sanja Šabović.
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#brainteasers #mastermind
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Calculate the number 1817

NUMBERMANIA: Calculate the number 1817 using numbers [9, 2, 1, 4, 49, 820] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 29
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Find the area of the shaded figure

Express result to the accuracy of 3 decimal.
Correct answers: 49
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math
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CINEMANIA: Guess the movie title

When his secret bride is executed for assaulting an English soldier who tried to rape her, a commoner begins a revolt and leads Scottish warriors against the cruel English tyrant who rules Scotland with an iron fist. Film was made in 1995.
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #movie #film #cinemania
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Calculate a * b

Calculate a * b
Correct answers: 27
The first user who solved this task is Sanja Šabović.
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: 53
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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Mole

In 1971, the mole—the amount of substance (matter)—was adopted as a chemical measurement added to the six base quantities of the SI (International System of scientific units). The decision was made by the Conférence Général des Poids et Mesures (CGPM), the principal executive organization under the Treaty of the Meter (which dates back to the Metric Convention on 20 May 1875). IUPAC's participation was led by M.L. McGlashan. The mole is the amount of substance of a system which contains as many elementary entities as there are carbon atoms in 0.012 kg of carbon 12. The elementary entities must be specified, such as atoms, molecules, ions, electrons, other particles, or specified groups of such particles. The agreed symbol for the unit is mol, and the symbol for amount of substance is n.«
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