Brain Teasers For All

     Other Pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here WHAT IS THE COLOUR  OF THE HAT? Age group: All Hi all! I am back with yet another exciting puzzle! "There are 3 black hats and 2 white hats in a box. Three men (say A, B and C) have a random hat placed on their heads. They cannot see what colour hat they have. The men are situated in such a way that A can see the hats on B and C's hats, B can only see the hat on C's head and C cannot see any hat. When A is asked if he can identify the colour of his hat, he refuses. Next, when B is asked the same question, he refuses too.  However, C, who couldn't see anyone else's hat, says yes and correctly identifies the colour of the hat on his head.  How did he know and what was the colour of his hat?" Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: What is the Colour of th...

     Other Pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here MINIMUM MOVES TO  OPEN THE DOORS? Age group: All Hi everyone, this is one of the questions which I found in an old examination paper and I thought of sharing it here! Do try this and let me know your answers as well as the working which led to the answer: "There are 5 persons who are trapped in 5 different elevators. There are 49 floors in the building. The 5 persons are respectively on the 17th, 26th, 20th, 19th, 31st floors. The elevator doors open only when all the elevators are between 21st and 25th floor in descending order. There are 2 buttons +8 and -13 that will be activated only when 2 elevators are selected together. The person on the 19th floor decides to take charge and get all of them out.  What is the minimum number of moves in which he can accomplish the target?" Solve this and do let me know your answers in the c...

     Other Pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here 80 Kg Only Age group: All "John, a party magician, is carrying three bars of gold, each weighing one kilogram. On the way to a session, he comes to a bridge, which has a sign posted saying the bridge can bear a weight of only 80 kilograms . John weighs 78 kilograms and the gold weighs 3 kilograms in total. He read the sign and still safely crossed the bridge with all the gold in one go . How did he manage to do this? " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: 80 Kg Only - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and better navigation! Contents View my blog on particle physics here With Warm Wishes, Lavanya

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here Which One is Heavier? Age group: All "You have 9 marbles: 8 of them weigh 1 gram each; 1 weighs 1.1 gram. The 9 marbles are all uniform in size, appearance and shape. You have access to a balance scale containing 2 trays - you may use the balance twice. You must determine which of the 9 marbles is the heavier one using the balance only twice. " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: Which One is Heavier? - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and better navigation! Contents View my blog on particle physics here With Warm Wishes, Lavanya

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here THE MISSING MONEY Age group: All Here is a very popular puzzle which I am sure all of you will be able to solve! "Three friends check into a motel for the night and the clerk tells them the bill is Rs. 3000, payable in advance. So, they each pay the clerk Rs. 1000 and go to their room. A few minutes later, the clerk realises he has made an error and overcharged the trio by Rs. 500. He asks the Assistant to return Rs. 500 to the 3 friends who had just checked in. The Assistant sees this as an opportunity to make Rs. 200 as he reasons that the three friends would have a tough time dividing Rs. 500 evenly among them; so he decides to tell them that the clerk made a mistake of only Rs. 300, giving a hundred rupee note back to each of the friends. He pockets the leftover Rs. 200 and goes home for the day!  Now, each of the three friends ...

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here HOW MANY ORANGES WERE ORIGINALLY PRESENT? Age group: All Hello everyone! Here is another interesting brainteaser for you! "Three friends, Pierce, Quinton and Ronald, went camping. At night, after setting up camp, they went to bed. They had carried with them a box of oranges.  During the night, Pierce woke up and decided to hide his share of oranges and hid a third , then promptly fell asleep again. Quinton woke up shortly thereafter and also decided to hide a third of the remaining oranges and he also went back to sleep. Finally, Ronald woke up and seeing the others were asleep, took a third of what was left . Of course, none of them knew of the other's antics. So, in the morning, they shared the remaining oranges, each receiving sixteen.   How many oranges were in the crate originally? " Solve this and do let me know your an...

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here HOW MANY GOLD COINS? Age group: All One of the easiest brain teasers if you have paid attention in your middle school mathematics class :D "A rich merchant had collected many gold coins. He did not want anybody to know about them. One day, his wife asked, 'How many gold coins do we have?' After pausing a moment, he replied, 'Well! If I divide the coins into two unequal numbers, then 67 times the difference between the two numbers equals the difference between the squares of the two numbers. ' His wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have ?" Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: How Many Gold Coins? - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for ea...

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here WHO DID IT? Age group: All Hello everyone, this puzzle is one of my personal favourites, I hope you all will have a good time solving it :) "There are five kids playing kickball. One of them kicked the ball so hard that they broke a window. When they are each questioned about what happened, each one of the kids gave three statements – one is a lie and two are true .  The statements are:  Steve:  One of us is going to be in big trouble.  I didn’t do it.  Margaret will tell who did it.  Jesse:  I hate kickball.  Amanda did it.  I didn’t do it.  Mark:  Margaret doesn’t know who did it.  Amanda and I are good friends.  I didn’t do it.  Amanda:  I have never broken a window.  I never saw Mark before today.  Jesse lied when he said I was the one who broke the ...

  Other pages:  Welcome!     Home   Contents   Get your brain teaser solved! View my blog on particle physics here FAMOUS SHAKUNTALA DEVI PUZZLE! Age group: All Can you solve this famous puzzle? "Fifty minutes ago if it was four times as many minutes past three o'clock, how many minutes is it to six o'clock?" Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: Shakuntala Devi Puzzle - 1 - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and better navigation! Contents View my blog on particle physics here With Warm Wishes, Lavanya

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here CAN YOU FIND THE AGE? Age group: All Hi everyone! Here is another interesting question, hope you all will enjoy it :) "The grandfather, father and child are together 140 years old. The grandfather is that many years old as old is the child in months. The father is that many weeks old as old is the child in days. Can you find the individual age of the grandfather, father and child in years? " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: Can You Find The Age? - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and better navigation! Contents View my blog on particle physics here With Warm Wishes, Lavanya

      Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here THE 298  DIVISION PROBLEM Age group: All Hi everyone! Here is another interesting puzzle! "Rohan's grandfather gave him exactly Rs 298. He then said, 'This amount will be yours if you do as I ask.' 'What do you want me to do?', Rohan asked. 'Simply this. Divide the amount, in whole rupee increments, into a number of bags so that I can ask for any amount between Re 1 and Rs 298, and you can give me the proper amount by giving me a certain number of these bags without opening and taking partially from them. ' What is the minimum number of bags Rohan will require? " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: The 298 Division Problem - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and better navigation! ...

  Other pages:  Welcome!     Home   Contents Get your brain teaser solved! View my blog on particle physics here WHICH SWITCH OPENS  THE LIGHT? Age group: All QUESTIONS ASKED BY YOU-  NOW SOLVED! Hi all! As you know, you can ask your questions (i.e. brain teasers) by using the following link: Get your brain teaser solved! The below question is a question that was asked by one of you... The question goes like this: " You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs? " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: Which Switch Opens the Light? - Answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and bett...

      Other pages:  Welcome!     Home    Contents   Get your brain teaser solved! View my blog on particle physics here THE 7-NIGHT PAYMENT  PROBLEM Age group: All Hi everyone! I am back with another interesting puzzle for you - " Chetan arrives at a hotel. He has 2 sets of gold rings and a single gold ring. The first set of rings has 4 rings and the second set has 2. He cannot take the sets of rings apart, or exchange them for a different form of currency, and the hotel clerk has no change. He wants to stay at the hotel for 7 nights, and he has to pay one gold ring for each night that he stays. He cannot pay in advance for any day or all, neither can he pay all at once at the end of his stay. How does he pay for his 7 nights at the hotel? " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: The 7-night payment problem - Answer Get your brain teaser solved! See my other posts...

      Other pages:  Welcome!     Home   Contents   Get your brain teaser solved! View my blog on particle physics here HOW MANY  IDENTIFIED IT? Age group: 6 - 12 years old Here is a very simple yet interesting brain teaser for you - " In an innovative contest, four kinds of fruits - apple, bananas, oranges and plums are placed in four different boxes. The boxes are closed and not transparent. Participants are asked to guess correctly the contents of each box. In all, 123 participants participated. 43 of them could not identify any of the boxes correctly. 39 of them could guess one box correctly. However, as many as 31 could guess two correctly but were wrong in identifying the other two. Can you tell how many people identified only three boxes correctly and how many identified all four? " Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: How many identified it? - Answer Get your b...

  Other pages:  Welcome!     Home    Contents Get your brain teaser solved! View my blog on particle physics here HOW MANY COINS IN EACH GLASS? Age group: All Hello Readers! Today, I bring to you yet another very interesting brain teaser! "How can you place 10 coins in 3 glasses such that each glass has an odd number of coins?" Note: You cannot leave any glass empty  Solve this and do let me know your answers in the comment section! You can find the answer to this puzzle here: Coins in glasses puzzle - answer Get your brain teaser solved! See my other posts here: My posts! View the contents of this blog for easy and better navigation! Contents View my blog on particle physics here With Warm Wishes, Lavanya