Difficulty Popularity

King Charles want to send the diamond ring to his girlfriend securely.He got multiple locks and their corresponding keys.His girl friend does not have any keys to these locks and if he send the key without a lock , the key can be copied in the way.How can charles send the ring to his girl friend securely .

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You have ten boxes and an electronic weighing machine. In those ten boxes, you have chocolates. Each chocolate weigh 20 grams. But in one box the chocolates are defective and each weigh 19 grams exactly.

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.
**category** :
LOGIC

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.

Difficulty Popularity

Indian jones went to Andaman(India) for the holiday where he came to know that there is a big treasure hidden here. The Map of the treasure is hidden somewhere in the cellular jail.

The Map location is hidden in the cipher below.

"roolF mooR gnignaH ehT edisnI neddiH sI paM erusaerT"

What is the map location?

The Map location is hidden in the cipher below.

"roolF mooR gnignaH ehT edisnI neddiH sI paM erusaerT"

What is the map location?

Difficulty Popularity

The digits 0-9(0,1,2,3,4,5,6,7,8,9) can be rearranged into 3628800 distinct 10 digits numbers.

How many of these numbers are prime ?

How many of these numbers are prime ?

Difficulty Popularity

A mules travels the same distance daily.

I noticed that two of his legs travels 10km and the remaining two travels 12km.

Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

I noticed that two of his legs travels 10km and the remaining two travels 12km.

Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

Difficulty Popularity

You need to divide 50 marbles(25-red and 25-blue) into two boxes such that the probability of picking red marble is maximized.

Following conditions need to hold true :

1. None of box is empty

2. All the marbles must be in one of two boxes.
**category** :
LOGIC

Following conditions need to hold true :

1. None of box is empty

2. All the marbles must be in one of two boxes.

Difficulty Popularity

By using the numbers 8,5 1 and 1 exactly once and with the help of basic operation (+, -, /, *), Can you form an expression with a value of 10?

Note: Parentheses are allowed

Note: Parentheses are allowed

Difficulty Popularity

If we tie a sheep to one peg, a circled grass is been eaten by the sheep. If we tie the sheep to two pegs with a circle on its neck, then an eclipse is eaten out of the grass by the sheep. If we want an eclipse then we put two pegs then put a rope in between then and the other end of the rope is tied up on the sheep's neck.

Question: how should we tie the peg and the sheep so that a square is eaten out from the garden's grass? We only have one sheep's rope and the peg and the rings.

**category** :
LOGIC

Question: how should we tie the peg and the sheep so that a square is eaten out from the garden's grass? We only have one sheep's rope and the peg and the rings.

Difficulty Popularity

Shihar Dhawan and Virat Kohli were batting on 94.

Seven runs were required to win by the team and only three balls were left.

At the end, both of them secured a century without being out.

How can this be feasible?
**category** :
LOGIC

Seven runs were required to win by the team and only three balls were left.

At the end, both of them secured a century without being out.

How can this be feasible?

Difficulty Popularity

If you were asked to pick nine toothpicks and make them ten without breaking any of them, how will you do it?

Difficulty Popularity

A 12-year footballer Lavy was offered a contract with a club name "Flyball" that if he will practice 1 hour extra after school he will be offered 11$ after every week.

Lavy, however, suggested an alternative paid method in which

He will be paid just a penny on his first day.

Two pence will be paid on the second day,

Four pence will be paid on the third day.

And so on till 11th day.

Should the club accept the offer of Lavy?

Lavy, however, suggested an alternative paid method in which

He will be paid just a penny on his first day.

Two pence will be paid on the second day,

Four pence will be paid on the third day.

And so on till 11th day.

Should the club accept the offer of Lavy?

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