Brain Teasers & Puzzles

A devotee goes to three temples, temple1, temple2 and temple3 one after the other.
In front of each temple, there is a small pool. So while going to each temple
he takes some flowers with him and takes holy bath in a pool belongs to that temple.
If he takes a bath in one pool the flowers which he had earlier get doubled.One day the devotee goes to a temple1 with flowers and takes a bath in a pool and the
flowers get doubled. He keeps some flowers for god and move to temple2
along flowers he left with. Again takes a bath in a pool, flowers get doubled and keeps
the same number of flowers which he has kept in temple1. Again the same procedure continues in temple3 where he keeps the flowers which he has kept in temple1 and
temple2 and comes out with empty hands (no flowers left out).1. What are the initial number of flowers the devotee had?
2. How many flowers did he keep in each temple?View SolutionSubmit Solution 7340 views
 2 answers
 9 votes

 4784 views
 2 answers
 8 votes

Five puzzleFry ship’s pirates have obtained 100 gold coins and have to divide up the loot. The pirates are all extremely intelligent, treacherous and selfish (especially the captain).
The captain always proposes a distribution of the loot. All pirates vote on the proposal, and if half the crew or more go “Aye”, the loot is divided as proposed, as no pirate would be willing to take on the captain without superior force on their side.
If the captain fails to obtain support of at least half his crew (which includes himself), he faces a mutiny, and all pirates will turn against him and make him walk the plank. The pirates start over again with the next senior pirate as captain.
What is the maximum number of coins the captain can keep without risking his life?
View SolutionSubmit Solution 62921 views
 6 answers
 4 votes

In a country where everyone wants a boy, each family continues having babies till they have a boy. After some time, what is the proportion of boys to girls in the country? (Assuming probability of having a boy or a girl is the same)
View SolutionSubmit Solution 56718 views
 4 answers
 4 votes

Dr.Willam wants to operate for three different persons who were wounded.
But he had only two surgical gloves.
There is not any blood contact between the three persons.How can Dr.Willam operate for the three people with two pair of surgical gloves?
View SolutionSubmit Solution 4328 views
 1 answers
 4 votes

 5141 views
 2 answers
 4 votes

100 persons are standing in line, each facing the same way. Each person is wearing a hat, either red or blue, but the hat color is not known to the person wearing the hat. In fact, a person knows the hat color only of those persons standing ahead of him in line.
Starting from the back of the line (that is, with the person who can see the hat colors of all of other 99 persons), in order, and ending with the person at the head of the line (that is, with the person who can see the hat color of no one), each person exclaims either “red” or “blue”. These exclamations can be heard by all. Once everyone has spoken, a score is calculated, equal to the number of persons whose exclamation accurately describes their own hat color.
What strategy should the 100 persons use in order to get as high a score as possible, regardless of how the hat colors are assigned? (That is, what strategy achieves the best worstcase score?)
For example, if everyone exclaims “red”, the worstcase score is 0. If the first 99 persons exclaim the color of the hat of the person at the head of the line and the person at the head of the line then exclaims the color he has heard, the worstcase score is 1. If every other person exclaims the hat color of the person immediate in front and that person then repeats the color he has just heard, then the worstcase score is 50. Can you do better?
Hint: Instead of using just red and blue as the possible hat colors and exclamations, use N different colors.
View SolutionSubmit Solution 22657 views
 1 answers
 3 votes
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