puzzles.nigelcoldwell.co.uk Report : Visit Site


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    The main IP address: 104.27.174.145,Your server Singapore,Singapore ISP:CloudFlare Inc.  TLD:uk CountryCode:SG

    The description :a collection of logical, lateral thinking brain training puzzles with answers for job interviews....

    This report updates in 06-Sep-2018

Technical data of the puzzles.nigelcoldwell.co.uk


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Latitude: 1.2896699905396
Longitude: 103.85006713867
Country: Singapore (SG)
City: Singapore
Region: Singapore
ISP: CloudFlare Inc.

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the quant riddles or logic or lateral puzzles 1-19 appear in the book 'heard on the street: quantitative questions from wall street job interviews' by timothy falcon crack phd available on his website , the rest have been accumulated from the internet and emails i receive. they are designed to help practice for job or university interviews or just training your brain. realistically, in an interview you wouldn't be asked these questions and left to your own devices, you'd be prompted. that's where the clues come in, they are intended to add ideas incrementally and help you get there by yourself.. questions 3 & 5 are probably the easiest and a good place to start. i've coloured them red , amber and green to indicate the difficulty along with the bar on the right. difficulty is very subjective, but they all offer something in teaching you the ideas and tricks used to solve them. so that's it good luck... minimum difficulty maximum difficulty 84. two identical bolts are placed together so that their helical grooves intermesh. if you move the bolts around each other as you would twiddle your thumbs, holding each bolt firmly by the head so that it does not rotate and twiddling them in the direction shown, ill the heads a) move inward, b) move outward, or c) stay the same distance a from each other? (click image to enlarge) answer helpful hint 83. quickie: john runs a tennis club. he's to organise a knockout tournament. he puts out the sign up sheet and after a week he has 15 sign-ups. john is confused, he can't work out how to organise a knock out tournament with 15 players, and doesn't know how many courts to book. he asks arabella, the professor. she knows instantly, without giving it a second's thought... how does arabella do this? she doesn't have time to plan the whole tournament. answer helpful hint 82. quickie: a carpenter, working with a buzz saw, wishes to cut a wooden cube, three inches on each side, into 27 one-inch cubes. he can do it easily by making six cuts through the cube, keeping the pieces together in the cube shape. can he reduce the number of necessary cuts by rearranging the pieces after each cut? (click image to enlarge) answer helpful hint 81. the diagram shows the tracks from a two wheeled bicycle. was the bicycle traveling from left to right or right to left? (click image to enlarge) answer helpful hint 80. quickie: suppose i give you four cards labeled with the letters a and d and the numerals 3 and 6. it is known every card has a letter on one side and a number on the other. the rule of the game is that a card with a vowel on it always has an even number on the other side. which of the cards would you have to turn over to prove this rule to be true? answer helpful hint 79. -flatland is a plane extending infinitely in all directions. it has an infinite number of airfields no two of which are exactly the same distance apart. -at a point in time a plane will take off from each airport and land at it's nearest neighbouring airport. -what is the maximum number of aeroplanes that may land at any single airfield? answer helpful hint 78. secret santa is a western christmas tradition in which members of a group or community are randomly assigned a person to whom they anonymously give a gift. the rules for determining who buys for whom are as follows. all the participants put their names in a hat. each player will draw a name in turn. if they should draw their own name they will return it to the hat and draw another. if the last person to draw draws their own name the game is void and everyone starts again. otherwise people will not return the name to the hat and will buy a present for the person whose name they have drawn. adam, bob and carol are to play a game of secret santa. they will draw in alphabetical order. what are the odds that adam buys for carol? answer helpful hint 77. quickie: a mother is 21 years older than her child. in exactly 6 years from now, the mother will be exactly 5 times as old as the child. where is the father? answer helpful hint 76. the diagram shows two concentric annuli (two dimensional ring shapes,) given that the two red lines are the same length, prove that the shaded areas are the same too. (click image to enlarge) answer helpful hint 75. three athletes (and only three athletes) participate in a series of track and field events. points are awarded for 1st, 2nd, and 3rd place in each event (the same points for each event, i.e. 1st always gets "x" points, 2nd always gets "y" points, 3rd always gets "z" points), with x > y > z > 0, and all point values being integers. the athletes are named adam, bob, and charlie: - adam finished first overall with 22 points - bob won the javelin event and finished with 9 points overall. - charlie also finished with 9 points overall. who finished second in the 100-meter dash (and why)? answer helpful hint 74. there are 100 prisoners in solitary cells. there's a central living room with one light bulb; this bulb is initially off. no prisoner can see the light bulb from his or her own cell. everyday, the warden picks a prisoner equally at random, and that prisoner visits the living room. while there, the prisoner can toggle the bulb if he or she wishes. also, the prisoner has the option of asserting that all 100 prisoners have been to the living room by now. if this assertion is false, all 100 prisoners are shot. however, if it is indeed true, all prisoners are set free and inducted into mensa, since the world could always use more smart people. thus, the assertion should only be made if the prisoner is 100% certain of its validity. the prisoners are allowed to get together one night in the courtyard, to discuss a plan. what plan should they agree on, so that eventually, someone will make a correct assertion? answer helpful hint 73. quickie: what is the square root of 12345678987654321? it's worth taking a clue on this one. answer helpful hint 72. a string is wound symmetrically around a circular rod. the string goes exactly 4 times around the rod. the circumference of the rod is 4cm and it's length is 12cm. find the length of the string. answer helpful hint 71. you start in the top left corner of a 6x6 grid, your goal is to get to the bottom right corner. you can only move to the right or down. you can't move diagonally and you can't move backwards. how many different ways are there to get from the start to the finish? answer helpful hint 70. andrew, britney and carol race each other in a 100 meters race. all of them run at a constant speed throughout the race. andrew beats britney by 20 meters. britney beats carol by 20 meters. by how many meters does andrew beat carol? answer helpful hint 69. quickie: at a whisky tasting mr cheap works out that for every 10 used, empty, glasses he can collect, he can poor the dregs together to make a whole new glass of whisky. at the end of the day he is able to find 100 empty glasses. how many full glasses can he now drink? answer helpful hint 68. you have 50 red marbles and 50 blue marbles, other wise identical. you have 2 identical jars. a marble will be selected at random, from a jar selected at random. how would you apportion the marbles so as to maximise the chances of a red marble being selected? can you prove it? answer helpful hint 67. how far is the horizon? answer helpful hint 66. a disease called the phage spreading throughout a kingdom of 1,000,000 people. currently one in every 500 people have the disease. the king's scientists develop a test with accuracy as follows: it will fail by false negative at a 1% rate. it will fail by false positive at a 2% rate. the king, planning to test everyone in the kingdom, is pleased. he thinks if he was prepared to secretly murder the 2,000 infected people a 2% rise wont make any difference. ' hold on ' says the chief nerd ' you'll actually have to murder x people and only one in y of them will have the phage. ' what are x & y? answer helpful hint 65. quickie: there are 9

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WHOIS lookup made at 08:23:02 14-Jul-2017

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  ARGS nigelcoldwell.co.uk

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DISCLAIMER
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for .uk domain names. This information and the .uk WHOIS are:
Copyright Nominet UK 1996 - 2017.
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  REGISTERED no

DOMAIN

  NAME nigelcoldwell.co.uk

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  NS3.VIDAHOST.COM 95.142.155.14

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