rookie1ja
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Posts posted by rookie1ja
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I disagree. By the rules of the puzzle, the hands must overlap. At 1:05 and 27 seconds the seconds hand is no where near the hour and minute hand. The secound half of the puzzle is easy. The angle of the seconds hands to the hour and minutes hands must by definition be 0.
Have a look at the puzzle again.
"In about one hour and five minutes the minute and hour hand will overlay again."
Nothing about seconds hand.
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Think about these - Back to the Paradoxes
1. Let's say (hypothetically) there is a bullet, which can shoot through any barrier. Let's say there is also an absolutely bullet-proof armour, and nothing gets through it. What will happen, if such bullet hits such armour?
2. Can a man drown in the fountain of eternal life?
3. Your mission is to not accept the mission. Do you accept?
4. This girl goes into the past and kills her Grandmother. Since her Grandmother is dead the girl was never born, if she was never born she never killed her grandmother and she was born.
5. If the temperature this morning is 0 degrees and the Weather Channel says, "it will be twice as cold tomorrow,".... What will the temperature be?
6. Answer truthfully (yes or no) to the following question: Will the next word you say be no?
7. What happens if you are in a car going the speed of light and you turn your headlights on?
8. I conclude with this challenge:
Let the God Almighty create a stone, which he can not pick up (is not capable of lifting)!
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A few sentences from life - Back to the Paradoxes
1. Nobody goes to that restaurant, because it is too crowded.
2. Don't go near the water, till you have learned how to swim.
3. The man who wrote such a stupid sentence, can not write at all.
4. If you get this message, call me, and if you don't get it, don't call.
5. ADVERTISEMENT: Are you an analphabet? Write a letter and we will send you free of charge instructions how to undo it.
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What is better - eternal bliss or a simple bread? - Back to the Paradoxes
What is better than eternal bliss? Nothing. But a slice of bread is better than nothing. So slice of bread is more than eternal bliss.
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Is it possible to give what we don't have? - Back to the Paradoxes
Sophist: "Yes. Greedy man gives his cash with sorrow. However, he doesn't have the cash with sorrow, so he gives what he doesn't have."
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Crocodile Sophism - Back to the Paradoxes
A slim crocodile living in Nile took a child. Mother begged to give him back. The crocodile could not only talk, he was also a great sophist, and so he stated: "If you guess (Edited: predict the fate = guess correctly), what I will do with him, I will return him. However, if you don't guess his fate I'll eat him." What statement shall the mother make to save her child (what about a vicious circle ...)?
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Lazy-bones Paradox - Back to the Paradoxes
If destiny designed a master plan, which defines everything that is to happen, isn't it useless to for example go to a doctor? If I am ill and it is my destiny to regain health, than I will regain health whether I visit a doctor or I don't. And if I shall not be healthy again, than I will not with or without help.
If I am ill and destiny has a definite plan for me, than it is useless to go anywhere.
How could you question the presented opinion?
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Barber Paradox (Russell's Paradox) - Back to the Paradoxes
Analogue paradox to the paradox of liar formulated English logician, philosopher and mathematician Bertrand Russell.
There was a barber in a village, who promised to shave everybody, who does not shave himself (or herself).
Can the barber shave himself and keep the mentioned promise?
Edited (better wording?):
In a village, the barber shaves everyone who does not shave himself/herself, but no one else.
Who shaves the barber?
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Double Liar Paradox (Jourdain's paradox) - Back to the Paradoxes
This version of the famous paradox was presented by an English mathematician P. E. B. Jourdain in 1913.
The following inscriptions are on a paper:
Back side
Inscription on the other side is true
Face side
Inscription on the other side is not true
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Liar Paradox (Eubulid or Epimenides Paradox) - Back to the Paradoxes
This is a well known paradox written by the great stoical logician Chrysippos. The poet, grammarian and critic Philetus of Cos was said to have died of exhaustion attempting to resolve it.
1st problem:
A Cretan sails to Greece and says to some Greek men who are standing upon the shore:
"All Cretans are liars."
Is he lying or telling the truth?
2nd problem:
Read after resolving the first as this contains a massive hint.
2. Now assume that either all Cretans are liars or all Cretans tell the truth.
A Cretan states "All Cretans are liars and all I say is the truth."
Is he lying or telling the truth?
If someone says "I always lie", are they telling the truth? Or are they lying?
Rational assumptions:
A liar always tells lies, and a truth-teller always tells the truth.
If a person is not a liar, then they are a truth-teller, and vice versa.
This Cretan is not the only Cretan.
The two problems are of disjoint cases.
Resolution
1. His statement is false (and he is a liar) if there is at least one Cretan who is not a liar.
2. His statement is false (and all Cretans are liars); the "all I say is the truth" part is false.
http://en.wikipedia.org/wiki/Square_of_opposition
Examples of incorrect interpretations from replying posts
He means that everyone has lied, but is not necessarily a liar.This is an attempt to find a loophole in the wording, which is not an objective response to a logic problem. If you're going to make a semantic argument, you might as well state that words are not universally meaningful. You could be right, but this is no fun
and detracts from the idea of a paradox (or really, anything...).This is not a paradox.
It IS a paradox (the word is just a descriptive label), even if it is not 'truly paradoxical'.
Note that this thread is closed since there have been hundreds of posts and resolution is summarized in this very first post.
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larryhl, easy as that
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larryhl, of course, you are right
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well the above reply says start ignition on both ends of the first cord.
The question specifies that it is being built from different materials , so how do we know
that it is exactly symmetrical materials are used from both points such that it will take exactly
30 minutes to reach the end ????
I suppose that answer will not be satiable.
It seems quite clear to me. Second condition says:
2. Every cord burns from ignition to the end exactly one hour.
So if you ignite the same cord on both ends, it should stop burning after half an hour. And, of course, spot where the fire from both ends meets does not have to be in the middle at all.
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„I am a poor swindlecant.“ = „I am poor and I am swindlecant.“
Sentence has to be considered as a whole and not as single parts (you would be right if it was 2 separate sentences). For more, check logical conjunction.
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Admin...your solution is incorrect. The man is looking at himself. The man in the photo is his father's son, with no brothers or sisters, the only son the man would have, is the one looking at the picture!
Check this:
"Who is it I am looking at, if I don't have any brothers or sisters and the father of that man on the photo is the son of my father?"
that means
"Who is it I am looking at, if I don't have any brothers or sisters and the father of that man on the photo is me?"
that means
"I am the father of that man on the photo"
that means
"There is my son on the photo"
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Unbelievable as it may seem, but it is so. Radius of circle made of 40,000 km and 10 meters long wire is just about 1.6 meters longer than the radius of circle made of 40,000 km long wire.
But feel free to prove the opposite.
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your solution is inncorrcet simply because the blue section has no leaf...
My solution is correct simply because the blue section has no leaf. Check the following condition mentioned in the puzzle: "One caterpillar will not have a leaf, she is taking a diet."
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Can't we say that that the two babies were born in different months of the same year (like one born in Jan, the other in Dec) as the question doesn't specify anything about the months.
Riddle amended - "months" added.
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in the 3rd figure, there is only one is rectangle and the other one is rhombus..
[url:e2cea]http://en.wikipedia.org/wiki/Rectangle
The other one should be a square (which is a rectangle as well), maybe not looking as one since I drew it without a ruler.
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If you could reverse image, then why moving any matches ... Unfortunately, reversing is not allowed.
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Leading zeroes aren't allowed and two letters can't represent the same number.
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Yes, I knew that it is not absolutely precise. Nevertheless, I like the way it's solved.
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Good picture - speaks more than a thousand words
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Maybe I'm missing something, but those look mirrored to me--not identical.
Yes, they are mirrored until you turn 1 piece
Lift
in Geometry/Dissection Puzzles
Posted
Move the yellow part left to fit the green part.