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Thread: Brain Teasers!

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    Default Brain Teasers!

    Hi I would like to post some brain teasers here..

    I would be glad if you post some new teasers here

    If you can find the answer/know the answer and want to post it, then post with spoiler.

    ---------- Post added at 10:25 ---------- Previous post was at 10:24 ----------



    Answer:
    Yes.
    First light fire on the two ends of one stick, and on one end of the other stick.
    First stick will be completed in 30 minutes.
    At that time 2nd stick will be half completed.
    Now fire at the other end of 2nd stick.
    It will be completed in 15 minutes.
    30+15 = 45 minutes calculated!





    Answer:
    Start 2 sand watches at the same time. After 7 minutes one will be completed, other will have 4 minutes left. Now let the 4 minutes go and turn the watch upside down to calculate another 11 minutes!




    Answer:
    4. Father is 99




    Answer:
    White




    Answer:
    Toughest one
    Last edited by abir; June 10th, 2011 at 11:37.

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    Aktao parlam na

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    Default Re: Brain Teasers!

    sheirokom toh!!!quite tricky though.dekhi pore post korbone kotogula.mojai lage eishob solve korte.
    ami chhoto amake marbenna.-_- shob _ buira_gamer_

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    Default Re: Brain Teasers!

    Quote Originally Posted by Sam View Post
    Aktao parlam na
    191, 4, 36 are quite easy..
    All are taken from 'নিউরণে অনুরণন'

    I would like to see more brain teasers here..

    ---------- Post added at 19:02 ---------- Previous post was at 19:01 ----------

    Quote Originally Posted by mr_08 View Post
    sheirokom toh!!!quite tricky though.dekhi pore post korbone kotogula.mojai lage eishob solve korte.
    yah brain teasers are fun
    But i am disappointed with the response from BG members, may be gamers are nor interested to play with brains

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    bhalo jinish...

    na parleo... poira moja laagse...

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    Default Re: Brain Teasers!

    Zafar Iqbal sir er নিউরণে অনুরণন boi ta ber howar pore onekgula ber korechilam. Shetao onek ager kotha. Amar kase khub interesting lage.
    @abir , where you take them from? Give us more to try if you can.

    Like my Facebook page Gaming Newz for new gaming news updates.

    My Facebook Twitter YouTube Steam

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    Default Re: Brain Teasers!

    Quote Originally Posted by anik_lc View Post
    Zafar Iqbal sir er নিউরণে অনুরণন boi ta ber howar pore onekgula ber korechilam. Shetao onek ager kotha. Amar kase khub interesting lage.
    @abir , where you take them from? Give us more to try if you can.
    @anik_lc
    most problem in the book are related to mathematics, I wanted to put the simple problems here that won't need mathematics knowledge much but to be solved with logic.
    I would post more if I get this type.. But first solve these ones

    I m looking for a book named Brain Teaser by Dr. Kaykobad.
    I've heard there are lots of problems!

    And if anyone has heard/solved this kind of problems please post here for others to tease our brains

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    Quote Originally Posted by abir View Post
    191, 4, 36 are quite easy..
    vai 191 ta parsi, 4 r 36 ta bujhtesi na. ektu explain koren pls

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    Default Re: Brain Teasers!

    Quote Originally Posted by OoAIDoO View Post
    vai 191 ta parsi, 4 r 36 ta bujhtesi na. ektu explain koren pls
    @OoAIDoO
    4 is quite easy also.
    Say, If Mr Rahim's father's age in 1998 is 65 then he was born in 1965
    [It's not the answer , because if was born in 1965 he can't be 65 in 1998 ]

    36 is easy also, if you simulate the situation with the boys.
    consider the cases possible and simulate

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    @abir Bro, amar kase kaykobad sir er Brain twister name e akta boi ase, co-written by Tanbir Ahmed & M. Shamsher Ali. 2002 er boi, amar ak vaia amake disilo. Posting a problem from there--
    **Inhabitants of certain remote island are divided into two hereditary castes. To an outsider, the members of these two castes look entirely alike. But those in one caste, the Arbus, always speak the truth; those in the other, the Bosnins, always tell the lies. An explorer, who did not know the language of the island, came to this island. As he landed he met three natives- Abl, Bsl & Crl.

    "Of what caste are you?" the explorer asked Abl.

    "Bhsfdsf gfdgdfsg fdfhg dfm," said Abl."

    "What did he say?" asked the explorer, addressing Bsl & Crl, both of whom had learnt some English.

    "He say he Arbu," said Bsl.

    "He say he Bosnin," said Crl.

    To which caste do Bsl & Crl belong???

    Answer:
    As the Arbus always speak the truth, if they are asked about their caste, they will answer 'Arbu'. & if the same question is asked to the Bosnins, they will tell a lie, which means they will also answer 'Arbu.' That means, Abl said he was Arbu irrespective of his caste nature. So, Bsl is Arbu & Csl is Bosnin.

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    Default Re: Brain Teasers!

    Quote Originally Posted by abir View Post
    @OoAIDoO
    4 is quite easy also.
    Say, If Mr Rahim's father's age in 1998 is 65 then he was born in 1965
    [It's not the answer , because if was born in 1965 he can't be 65 in 1998 ]

    36 is easy also, if you simulate the situation with the boys.
    consider the cases possible and simulate
    @4, vai ans '99' ken aita explain koren.
    @36, ki simulate korbo vai? aitar ans 'white' ken explain koren.
    Last edited by OoAIDoO; June 11th, 2011 at 01:50.

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    Default Re: Brain Teasers!

    Quote Originally Posted by areek View Post
    @abir Bro, amar kase kaykobad sir er Brain twister name e akta boi ase, co-written by Tanbir Ahmed & M. Shamsher Ali. 2002 er boi, amar ak vaia amake disilo. Posting a problem from there--

    **Inhabitants of certain remote island are divided into two hereditary castes. To an outsider, the members of these two castes look entirely alike. But those in one caste, the Arbus, always speak the truth; those in the other, the Bosnins, always tell the lies. An explorer, who did not know the language of the island, came to this island. As he landed he met three natives- Abl, Bsl & Crl.

    "Of what caste are you?" the explorer asked Abl.

    "Bhsfdsf gfdgdfsg fdfhg dfm," said Abl."

    "What did he say?" asked the explorer, addressing Bsl & Crl, both of whom had learnt some English.

    "He say he Arbu," said Bsl.

    "He say he Bosnin," said Crl.

    To which caste do Bsl & Crl belong???

    Answer:
    As the Arbus always speak the truth, if they are asked about their caste, they will answer 'Arbu'. & if the same question is asked to the Bosnins, they will tell a lie, which means they will also answer 'Arbu.' That means, Abl said he was Arbu irrespective of his caste nature. So, Bsl is Arbu & Csl is Bosnin.
    @areek
    yes I was looking for that book!
    Do you know where to find it? in New market?

    Thanks for posting.
    Hope you would post at regular interval from that book

    Btw here is the answer:
    Answer:
    BSL - Arbu, CRL - Bosninal


    tell me I am right or wrong

    ---------- Post added at 01:03 ---------- Previous post was at 00:49 ----------

    Quote Originally Posted by OoAIDoO View Post
    @4, vai ans '99' ken aita explain koren.
    @36, ki simulate korbo vai? aitar ans 'white' ken explain koren.
    @OoAIDoO
    Plese post anything related to answer in Spoiler.
    & Here is your explanation:

    Explanation:

    #4: His father was born in 1899, in 1998 his age was 99. 1899+99 = 1998.
    You can also find Mr. Rahim's age. That is 49

    #36: সামনের ছেলের মাথায় যদি কালো টুপি থাকে, তাহলে দ্বিতীয় জনের মাথায় থাকতে পারে কালো টুপি অথবা সাদা টুপি. তাহলে যদি দ্বিতীয় ছেলের মাথায় কালো টুপি থাকে, তৃতীয় জন (পিছনের জন) এর মাথায় অবশ্যই সাদা টুপি থাকবে যেহেতু কালো টুপির সংখ্যা ২টা এবং তৃতীয় জন বলে দিতে পারবে তার মাথায় সাদা টুপি.
    যেহেতু তৃতীয় জন বলতে পারে নাই তার মাথায় কি টুপি তার মানে দ্বিতীয় জনের মাথায় কালো টুপি নাই. তার মাথায় সাদা টুপি. তখন তৃতীয় জন কিন্তু বলতে পারবে না.
    কিন্তু তৃতীয় জন যদি বলতে না পারে তখন দ্বিতীয় জন কিন্তু বুঝে যাবে যে তার মাথায় যেহেতু সাদা টুপি তাই তৃতীয় জন বলতে পারে নাই.
    তাই সে ঠিক ঠিক বলে দিতে পারবে তার মাথায় কি রঙ এর টুপি.

    অর্থাৎ সামনের জনের মাথায় কালো টুপি থাকলে ২ জনের কেউ না কেউ বলতে পারবে তার মাথায় কি টুপি.

    কিন্তু যেহেতু ২ জন ই বলতে পারে নাই তার মানে সামনের জনের মাথায় সাদা টুপি.


    Now please insert the answer on your post in spoiler so that it doesn't spoils another one's try!
    Last edited by abir; June 11th, 2011 at 02:06.

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    Quote Originally Posted by abir View Post
    @areek
    yes I was looking for that book!
    Do you know where to find it? in New market?

    Thanks for posting.
    Hope you would post at regular interval from that book

    Btw here is the answer:
    Answer:
    BSL - Arbu, CRL - Bosninal


    tell me I am right or wrong
    Bro, not sure where u can find it now, puran boi er dokan e thakte pare.

    BTW, answer is c0RR3c7.

    From now on, jei question post korbo, sheitar answer dibo at least 1 correct answer or 3 ta try er por.

    Easy one--
    Two fathers & two sons went for fishing & caught 3 fishes of equal size. They divided the 3 fish into equal shares without cutting them. How was it possible??

    Answer:
    Grandpa, dad & son
    Last edited by areek; June 11th, 2011 at 02:47.

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    Default Re: Brain Teasers!

    Quote Originally Posted by areek View Post
    Bro, not sure where u can find it now, puran boi er dokan e thakte pare.
    BTW, answer is c0RR3c7.
    From now on, jei question post korbo, sheitar answer dibo at least 1 correct answer or 3 ta try er por.
    Easy one--
    Two fathers & two sons went for fishing & caught 3 fishes of equal size. They divided the 3 fish into equal shares without cutting them. How was it possible??
    you can post with spoiler, i didn't see it, i try to solve it first
    Answer:
    Grand father, Father, Son went on fishing

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    @areek
    post some new ones

    btw, can u tell the publisher of the book you have? i will go to new market for it..

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    Quote Originally Posted by abir View Post
    @areek
    post some new ones

    btw, can u tell the publisher of the book you have? i will go to new market for it..
    @abir vai, boi er upor lekha ase ja-
    Voyager Publications--40/41, Banglabazer, Ahmed Complex(2nd floor)
    Phone no-7116566,9122523
    BTW- there are mostly mathematical & geometric problems, only a few logical problems & puzzles here.

    Anyways, posting another teaser--
    A:"I have what B has & the third of what C has."
    B:"I have what C has & the third of what A has."
    C:"And I have Tk. 10 & the third of what B has."

    How much tk does each of A, B & C have?

    ---------- Post added at 16:37 ---------- Previous post was at 16:28 ----------

    answer:
    A-45 tk, B-37.50 tk, C-22.50 tk

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    Default Re: Brain Teasers!

    Quote Originally Posted by areek View Post
    @abir vai, boi er upor lekha ase ja-
    Voyager Publications--40/41, Banglabazer, Ahmed Complex(2nd floor)
    Phone no-7116566,9122523
    BTW- there are mostly mathematical & geometric problems, only a few logical problems & puzzles here.

    Anyways, posting another teaser--
    A:"I have what B has & the third of what C has."
    B:"I have what C has & the third of what A has."
    C:"And I have Tk. 10 & the third of what B has."

    How much tk does each of A, B & C have?
    ---------- Post added at 16:37 ---------- Previous post was at 16:28 ----------
    answer:
    A-45 tk, B-37.50 tk, C-22.50 tk
    Yah this one is mathematical too but easy, 3 equation and 3 unknown everyone solves that in 9-10
    Answer:
    A = 45, B = A/2+15 = 37.5 C = 10 + B/3 = 22.5


    I looked for some puzzle sites didn't find much

    BTW, here are two interesting but easy game, solve this!

    http://www.learn4good.com/games/puzzle/boat.htm

    http://www.plastelina.net/examples/games/game3.html

    "Game after game after game, I realized what is most important of my life - FOOTBALL.."
    I bleed red, Man Utd 4ever..
    ---------------------
    অনেক দূরের একলা পথে, ক্লান্ত আমি ফিরি তোমার কাছে, মুখোশ খুলে বসে রই জানলার ধারে..

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    Default Re: Brain Teasers!

    I got this in a flash video on my HDD. I liked this one.

    Like my Facebook page Gaming Newz for new gaming news updates.

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    Default Re: Brain Teasers!

    এই টেবিলে ১ থেকে ৯ পর্যন্ত বসান যাতে সবদিক সমান হয়...


    ---------- Post added at 01:03 ---------- Previous post was at 00:56 ----------

    @anik_lc vaiya ei thread ta sticky koren and tag me...and thanx to @abir vaiya..
    Last edited by Dhumketu; June 22nd, 2011 at 01:58.
    Most people think time is like a river, that flows swift and sure in one direction. But I have seen the face of time, and I can tell you, they are wrong. Time is an ocean in a storm. You may wonder who I really am, and why I say this. Come, and I will tell you a tale like none you have ever heard.

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    Default Re: Brain Teasers!

    Quote Originally Posted by Dhumketu View Post

    @anik_lc vaiya ei thread ta sticky koren and tag me...and thanx to @abir vaiya..
    Tag done. Not sure if its a good idea to sticky this thread. Too less people visiting this thread. Maybe not much people in this forum who interested in brain teaser. And I also don't have the power in this section. Report it. Aayman will take care of it.

    ---------- Post added at 01:31 ---------- Previous post was at 01:25 ----------

    And the solution to Dhumketu puzzle:
    Solution:

    2 7 6
    9 5 1
    4 3 8

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