Brain Teasers & Puzzles
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A man is as old as his friend will be when the man is twice the age that the friend was
when the man’s age was half the sum of their present ages.What are their ages?
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How many squares are on a chess board?
If you think the answer is 64, think again!
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- 1 answers
- -1 votes
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People go round and round me Adding some lights on a string
And later underneath me They place the gifts that they bring.
What i am ?
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- 2 answers
- -1 votes
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You are on your way to visit your Friend, who lives at the end of the hill. It is his birthday, and you want to give him the cakes you have made. Between your house and his house, you have to cross 5 bridge, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake.
How many cakes do you have to leave home to make sure that you arrive at friend house with exactly two cakes?
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X wants to send a Confidential message to his friend Y in the mail.
But Z (X’s Friend), who X don’t trust, has access to all X’s mail. So X put his message in a box with a lock. But X is not allowed to send a key!
How can X send his message through securely?
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There are ‘n’ coins in a line. (Suppose n is even). Two players take turns to take a coin from one of the ends of the line until there are no more coins left. The player with the larger amount of money wins.
Assume that you go first, describe an algorithm to compute the maximum amount of money you can win.
Submit Solution- 1,221.9K views
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