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Four friends need to cross a dangerous bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

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A perfect number is defined as a positive number(integer) which is equal to the sum of its positive divisors excluding the number itself.

two examples are mentioned below as :

6 => 1+2+3

12=> 1+2+3+6

Can you find another perfect number which consist of <= 2digits.

two examples are mentioned below as :

6 => 1+2+3

12=> 1+2+3+6

Can you find another perfect number which consist of <= 2digits.

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We have 4 blue, 4 red, 4 green and 4 yellow hats. All the hats must be labelled with an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’ in a manner that one sign is used on a particular color only once. Now these hats must be arranged in a 4x4 grid in a manner that no two rows or columns have a repeating color or sign.

To give you a kick start, we have arranged 4 hats in the grid. Can you place the rest of them ?

To give you a kick start, we have arranged 4 hats in the grid. Can you place the rest of them ?

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On a random day , i was not able to logged-in with my bank password , so i contacted them on phone.

Our conversation is stated as :

myself : My password is altered.

myself : I am not able to logged-in.

customer-executive : Your password is distinct this time and it got 8 letters , out of which 2 are same of your previous password.

myself: Thanks , now i am able to logged-in.

Whats my old and new passwords ?

Our conversation is stated as :

myself : My password is altered.

myself : I am not able to logged-in.

customer-executive : Your password is distinct this time and it got 8 letters , out of which 2 are same of your previous password.

myself: Thanks , now i am able to logged-in.

Whats my old and new passwords ?

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Anne was found dead in the central park of London.

There are six suspects "hazard", "Costa", "Pedro", "Willian", "Terry" and "courtois".

Anne has written the murdered name in cipher on the floor as "dqvxf".

Police were unable to solve the mystery so they called Sherlock.

After a minute, Sherlock was able to decipher the cipher and ask the police to capture the murderer.

Who is the murderer?

**category** :
MYSTERY

There are six suspects "hazard", "Costa", "Pedro", "Willian", "Terry" and "courtois".

Anne has written the murdered name in cipher on the floor as "dqvxf".

Police were unable to solve the mystery so they called Sherlock.

After a minute, Sherlock was able to decipher the cipher and ask the police to capture the murderer.

Who is the murderer?

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Using eight eights and addition only, can you make 1000?

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You are stuck with the pirates who might even kill you on board. They give you a chance to survive. There are hundred black rocks and hundred red rocks. There are two empty sacks which are labelled as heads and tails respectively. You have to divide the rocks in two bags as per your wish. Then a fair coin will be flipped. If its heads, you will have to pick a rock on random from the sack labelled heads and if its tails, you will pick up from the tails sack. If you pick up a black rock, you will be freed and if you pick up a red rock, you will be killed.

How will you distribute the rocks so that your chances of survival are the best?

How will you distribute the rocks so that your chances of survival are the best?

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