BRAIN TEASERS
Monthly Archive - November 2015 (page 5)

Monthly Archive - November 2015 (page 5)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 41 to 50.
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What has rivers but no water, ...

What has rivers but no water, forests but no trees, and cities but no people?
Correct answers: 139
The first user who solved this task is Sanja Šabović.
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#brainteasers #riddles
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Calculate the number 6974

NUMBERMANIA: Calculate the number 6974 using numbers [2, 3, 8, 5, 52, 821] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 27
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 1115

NUMBERMANIA: Calculate the number 1115 using numbers [2, 2, 6, 7, 63, 146] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 28
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania

The ten commandments of marriage

Commandment 1. Marriages are made in heaven. But so again are thunder and lightning.
Commandment 2. If you want your wife to listen and pay strict attention to every word you say, talk in your sleep.
Commandment 3. Marriage is grand — and divorce is at least 100 grand!
Commandment 4. Married life is very frustrating. In the first year of marriage, the man speaks and the woman listens. In the second year, the woman speaks and the man listens. In the third year, they both speak and the neighbors listen.
Commandment 5. When a man opens the door of his car for his wife, you can be sure of one thing: Either the car is new or the wife is.
Commandment 6. Marriage is when a man and woman become as one; The trouble starts when they try to decide which one.
Commandment 7. Before marriage, a man will lie awake all night thinking about something you say. After marriage, he will fall asleep before you finish.
Commandment 8. Every man wants a wife who is beautiful, understanding, economical, and a good cook. But the law allows only one wife.
Commandment 9. Marriage and love are purely matter of chemistry. That is why wife treats husband like toxic waste.
Commandment 10. A man is incomplete until he is married. After that, he is finished.
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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: 69
The first user who solved this task is James Lillard.
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#brainteasers #mastermind
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Calculate the number 570

NUMBERMANIA: Calculate the number 570 using numbers [8, 1, 9, 3, 15, 446] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 34
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Count of Quaregna Amedeo Avogadro

Died 9 Jul 1856 at age 79 (born 9 Aug 1776). Italian chemist and physicist who found that at the same temperature and pressure equal volumes of all perfect gases contain the same number of particles, known as Avogadro's Law (1811) leading to the Avogadro's constant being 6.022 x 1023 units per mole of a substance. He realized the particules could be either atoms, or more often, combinations of atoms, for which he coined the word "molecule." This explained Gay-Lussac's law of combining volumes (1809). Further, Avogadro determined from the electrolysis of water that it contained molecules formed from two hydrogen atoms for each atom of oxygen, by which the individual oxygen atom was 16 times heavier than one hydrogen atom (not 8 times as suggested earlier by John Dalton.)«
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