Brain Teasers & Puzzles
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There is a one person who have two numbers, he tells sum to the person S and product of those numbers to P.
Now there is this conversion between S and P.
S: I don’t know what are the numbers.
P: I also don’t know what are the numbers.
S: Now i know what are the numbers.
P: Now i also know what are the numbers.
Assuming S and P to be very wise and good in mathematics, What are those two numbers?
Note: Numbers are greater than 0.View SolutionSubmit Solution- 1,803.7K views
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A Bear has fallen from a height of 10m from ground. It reached ground in sqrt(2) seconds. Luckily it didn’t get hurt.
What is the color of that Bear? Prove it scientifically.
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100 people standing in a circle in an order 1 to 100. No.1 has a sword. He kills next person (i.e. no. 2) and gives sword to next to next (i.e no.3). All person does the same until only 1 survives. Which number survives at the last?
View SolutionSubmit Solution- 1,806.1K views
- 1 answers
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There are (n+1) people in a party, they might or might not know each others names.
There is one celebrity in the group(total n +1 people), celebrity does not know any of n peoples by name and all n people know celebrity by name.
You are given the list of people’s names(n+1), You can ask only one question from the people. Do you know this name ?
How many maximum number of questions you need to ask to know the celebrity name?
View SolutionSubmit Solution- 1,804.5K views
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You are trying to cook an egg for exactly fifteen minutes, but instead of a timer, you are given two ropes which burn for exactly 1 hour each. The ropes,are of equal densities. How can you cook the egg for exactly fifteen minutes?
View SolutionSubmit Solution- 1,804.6K views
- 2 answers
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You are blindfolded and 10 coins are place in front of you on table. You are allowed to touch the coins, but can’t tell which way up they are by feel. You are told that there are 5 coins head up, and 5 coins tails up but not which ones are which. How do you make two piles of coins each with the same number of heads up? You can flip the coins any number of times.
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Consider a rectangular grid of 4×3 with lower left corner named as A and upper right corner named B. Suppose that starting point is A and you can move one step up(U) or one step right(R) only. This is continued until B is reached. How many different paths from A to B possible ?
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If you walk one mile south, then one mile east and then one mile north, you reach the place where you started. In such a scenario, how many points are there on the globe to make it happen?
View SolutionSubmit Solution- 1,805.8K views
- 2 answers
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You’ve got someone working for you for seven days and a gold bar to pay him. The gold bar is segmented into seven connected pieces.
You must give them a piece of gold at the end of every day.
What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?
View SolutionSubmit Solution- 1,865.8K views
- 3 answers
- 1 votes
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You have two jars, 50 red marbles and 50 blue marbles. You need to place all the marbles into the jars such that when you blindly pick one marble out of one jar, you maximize the chances that it will be red. When picking, you’ll first randomly pick a jar, and then randomly pick a marble out of that jar. You can arrange the marbles however you like, but each marble must be in a jar.
View SolutionSubmit Solution- 1,818.0K views
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