#115
How many triangles of any size and orientation can you count in this picture?
Difficulty Level - 3/5
How many triangles of any size and orientation can you count in this picture?
Monday 30 September 2013
Sunday 29 September 2013
Murder Mystery Puzzle
#114
A Man was busy in his work when his dress was torn.
He died after 3 minutes.
Why did he die?
Difficulty Level - 3/5
A Man was busy in his work when his dress was torn.
He died after 3 minutes.
Why did he die?
Difficulty Level - 3/5
Update Your Answers : Click Here
Solution :
He was an ASTRONAUT and was fighting with another Astronaut, during which his dress was torn and lack of oxygen was the reason of his death)
Solution :
He was an ASTRONAUT and was fighting with another Astronaut, during which his dress was torn and lack of oxygen was the reason of his death)
Saturday 28 September 2013
Simple Visualization Problem
#113
How many legs does this elephant has ??
Difficulty Level - 1/5
How many legs does this elephant has ??
Difficulty Level - 1/5
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Solution :
5 legs. (You should verify it by counting feet instead of legs)
Solution :
5 legs. (You should verify it by counting feet instead of legs)
Thursday 26 September 2013
Alphabet Observation Puzzle
#112
Name the alphabet(s) that doesn't appear in the spellings of 0 to 99...??
Difficulty Level - 4/5
Name the alphabet(s) that doesn't appear in the spellings of 0 to 99...??
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Solution :
A, B, C, D, J, K, M, P, Q
But the main OBSERVATION is that A, B, C and D don't appear till 99. First time D comes in 100.
Solution :
A, B, C, D, J, K, M, P, Q
But the main OBSERVATION is that A, B, C and D don't appear till 99. First time D comes in 100.
Wednesday 25 September 2013
Fish Puzzle
#111
Tom, Dick and Harry went for fishing in a Lake.
They got 10 fishes without heads,
12 fishes without the tail and 5 fishes cut in two halves.
So, In Total how many fishes did they catch ?
Difficulty Level - 2/5
Tom, Dick and Harry went for fishing in a Lake.
They got 10 fishes without heads,
12 fishes without the tail and 5 fishes cut in two halves.
So, In Total how many fishes did they catch ?
Difficulty Level - 2/5
Tuesday 24 September 2013
Tricky RIddle
#110
One of my friend asked me to draw a line on the floor.
Then, he asked me to make that line smaller without erasing it.
I smiled and did it before he could blink his eyes.
Can you explain how I managed that??
Difficulty Level - 3/5
One of my friend asked me to draw a line on the floor.
Then, he asked me to make that line smaller without erasing it.
I smiled and did it before he could blink his eyes.
Can you explain how I managed that??
Difficulty Level - 3/5
Monday 23 September 2013
Word Search Problem
#109
This Puzzle is a little scarier one than the normal word search. We've left out one of the 36 first and the last names, and ask you to figure out which one is missing.
Difficulty Level - 4/5
This Puzzle is a little scarier one than the normal word search. We've left out one of the 36 first and the last names, and ask you to figure out which one is missing.
Sunday 22 September 2013
Interesting Maths Puzzle
#108
Using exactly four 4's, how many whole numbers you can get.. ?
E.g (4+4)/(4+4) = 1
Difficulty Level - 5/5
Using exactly four 4's, how many whole numbers you can get.. ?
E.g (4+4)/(4+4) = 1
Difficulty Level - 5/5
Interesting Maths Puzzle - Hint
#108
Using exactly four 4's, how many whole numbers you can get.. ?
E.g (4+4)/(4+4) = 1
Difficulty Level - 5/5
Using exactly four 4's, how many whole numbers you can get.. ?
E.g (4+4)/(4+4) = 1
Difficulty Level - 5/5
Crossing Bridge Problem
#107
There are 4 friends who want to cross the bridge. There is only 1 lamp with them which is needed to cross the bridge and only 2 persons can cross the bridge at a time.
The time taken to cross the bridge by each person is 1 min, 2 min, 5 min and 10 min respectively.
How can they cross the bridge if the bridge is going to break in only 17 minutes ?
Difficulty Level - 3/5
There are 4 friends who want to cross the bridge. There is only 1 lamp with them which is needed to cross the bridge and only 2 persons can cross the bridge at a time.
The time taken to cross the bridge by each person is 1 min, 2 min, 5 min and 10 min respectively.
How can they cross the bridge if the bridge is going to break in only 17 minutes ?
Difficulty Level - 3/5
Update Your Answers : Click Here
Solution :
(1,2) 1 returns (3 mins)
(5,10) 2 returns (12 mins)
(1,2) i.e. 2 mins .....
So overall 17 mins.
OR
(1,2) 2 returns (4 mins)
(5,10) 1 returns (11 mins)
(1,2) i.e. (2 mins)
So overall 17 mins.
Solution :
(1,2) 1 returns (3 mins)
(5,10) 2 returns (12 mins)
(1,2) i.e. 2 mins .....
So overall 17 mins.
OR
(1,2) 2 returns (4 mins)
(5,10) 1 returns (11 mins)
(1,2) i.e. (2 mins)
So overall 17 mins.
No. Of Cats ?
#106
How many cats do you see in the picture ?
Difficulty Level - 1/5
How many cats do you see in the picture ?
Difficulty Level - 1/5
Thursday 19 September 2013
The Three Stooges Accident
#105
The three stooges met with an accident and were wounded. But, there was not any blood
contact between them. They went to a nearby doctor. But the Dr. had only two pairs of surgical gloves.
How it would be possible for the Dr. to operate the three stooges with only two pair of surgical gloves?
Difficulty Level - 4/5
The three stooges met with an accident and were wounded. But, there was not any blood
How it would be possible for the Dr. to operate the three stooges with only two pair of surgical gloves?
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Solution :
First, the Dr.will wear both of the gloves, one above the other and operate the 1st Stooge. After operating the 1st one, he will remove the outer pair of gloves and place it in a tray. Then he will operate the 2nd Stooge. Finally, to operate the 3rd Stooge, he will wear the 1st gloves as inside out above the 2nd gloves.
Solution :
First, the Dr.will wear both of the gloves, one above the other and operate the 1st Stooge. After operating the 1st one, he will remove the outer pair of gloves and place it in a tray. Then he will operate the 2nd Stooge. Finally, to operate the 3rd Stooge, he will wear the 1st gloves as inside out above the 2nd gloves.
Wednesday 18 September 2013
Colour Blind Test
#104
What number do you see ?
Difficulty Level - 2/5
Difficulty Level - 2/5
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Solution :
If you are not a colour blind then you can see all four numbers.
Solution :
If you are not a colour blind then you can see all four numbers.
Tuesday 17 September 2013
Verbal Reasoning Puzzle
#103Which number replaces the question mark?
Difficulty Level - 3/5
Monday 16 September 2013
Spot The Error Problem
#102
What is wrong in the picture ?
Difficulty Level - 3/5
What is wrong in the picture ?
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Solution :
Shoes are interchanged. Left leg has the right shoe and right leg has the left shoe.
Solution :
Shoes are interchanged. Left leg has the right shoe and right leg has the left shoe.
Spot The Error Problem - Hint
#102
What is wrong in the picture ?
Difficulty Level - 3/5
What is wrong in the picture ?
Sunday 15 September 2013
Calendar Mystery Puzzle
#101
A Lady was found murdered in her office.
The suspects were John, Jack, Fad and Ann.
The only clue left by the killer(s) was, "2 thousand 8 hundred and 12", written on the calendar and kept near the body.
Who was the killer?
Difficulty Level - 2/5
A Lady was found murdered in her office.
The suspects were John, Jack, Fad and Ann.
The only clue left by the killer(s) was, "2 thousand 8 hundred and 12", written on the calendar and kept near the body.
Who was the killer?
Difficulty Level - 2/5
Update Your Answers : Click Here
Solution :
Fad was the killer. (Numbers are denoting 1st letter of months )
Solution :
Fad was the killer. (Numbers are denoting 1st letter of months )
Saturday 14 September 2013
Weights Problem
#100
An intelligent shopkeeper needs some weights to measure the goods of 1-1000 kg weight. So, in order to invest a minimum amount of rupees in weights, how many minimum weights he will need ? Also name the weights.
Difficulty Level - 4/5
An intelligent shopkeeper needs some weights to measure the goods of 1-1000 kg weight. So, in order to invest a minimum amount of rupees in weights, how many minimum weights he will need ? Also name the weights.
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Solution :
He will need 10 weights namely 1, 2, 4, 8, 16, 32, 64, 128, 256, 512.
(2^0 to 2^9 because 1000 < 2^10)
Solution :
He will need 10 weights namely 1, 2, 4, 8, 16, 32, 64, 128, 256, 512.
(2^0 to 2^9 because 1000 < 2^10)
Weights Problem - Hint
#100
An intelligent shopkeeper needs some weights to measure the goods of 1-1000 kg weight. So, in order to invest a minimum amount of rupees in weights, how many minimum weights he will need ? Also name the weights.
Difficulty Level - 4/5
An intelligent shopkeeper needs some weights to measure the goods of 1-1000 kg weight. So, in order to invest a minimum amount of rupees in weights, how many minimum weights he will need ? Also name the weights.
Friday 13 September 2013
Coins In Box Problem
#99
Difficulty Level - 1/5
Update Your Answers : Click Here
Solution :
There were some coins in the box at first. (Read 1st line again)
Solution :
There were some coins in the box at first. (Read 1st line again)
Mr. Blue Puzzle
#98
There was a Man called Mr. Blue. He loved the color Blue. His Bungalow was Blue in color. He made everything Blue in color, the walls were blue, the floors were blue, the chairs were blue, the tables were blue and even the T.V were blue in color.
So, What would be the color of the stairs ???
Difficulty Level - 2/5
There was a Man called Mr. Blue. He loved the color Blue. His Bungalow was Blue in color. He made everything Blue in color, the walls were blue, the floors were blue, the chairs were blue, the tables were blue and even the T.V were blue in color.
So, What would be the color of the stairs ???
Difficulty Level - 2/5
Thursday 12 September 2013
The Crime Suspect
#97
There was a man who kept on committing crimes. He was taken into the court for the third time.
The Judge said " We have traced back the comments you made in previous courts and we came to know that you have been lying. So, you would be hanged till death... However, if you can write down a true statement on a piece of paper on the day of your execution then your sentence will only be 10 years".
So, when it came to the day of execution, the man wrote down a statement.
The Judge read the statement and released him with no charge.
What did he write on the paper and why was he set free?
Difficulty Level - 4/5
There was a man who kept on committing crimes. He was taken into the court for the third time.
The Judge said " We have traced back the comments you made in previous courts and we came to know that you have been lying. So, you would be hanged till death... However, if you can write down a true statement on a piece of paper on the day of your execution then your sentence will only be 10 years".
So, when it came to the day of execution, the man wrote down a statement.
The Judge read the statement and released him with no charge.
What did he write on the paper and why was he set free?
Update Your Answers : Click Here
Solution :
He wrote "I WILL BE HUNG".
If it is a false statement, then they will hang him and the statement will become true and they can't put him in jail because the statement is false!!! So, they set him free...
Solution :
He wrote "I WILL BE HUNG".
If it is a false statement, then they will hang him and the statement will become true and they can't put him in jail because the statement is false!!! So, they set him free...
The Crime Suspect - Hint
#97
There was a man who kept on committing crimes. He was taken into the court for the third time.
The Judge said " We have traced back the comments you made in previous courts and we came to know that you have been lying. So, you would be hanged till death... However, if you can write down a true statement on a piece of paper on the day of your execution then your sentence will only be 10 years".
So, when it came to the day of execution, the man wrote down a statement.
The Judge read the statement and released him with no charge.
What did he write on the paper and why was he set free?
Difficulty Level - 4/5
There was a man who kept on committing crimes. He was taken into the court for the third time.
The Judge said " We have traced back the comments you made in previous courts and we came to know that you have been lying. So, you would be hanged till death... However, if you can write down a true statement on a piece of paper on the day of your execution then your sentence will only be 10 years".
So, when it came to the day of execution, the man wrote down a statement.
The Judge read the statement and released him with no charge.
What did he write on the paper and why was he set free?
Wednesday 11 September 2013
The Three Stooges Race
#96
The three stooges - Moe, Larry and Curly were running in the 100 meter race.
All of them were running at a constant speed throughout the race.
Moe beats Larry by 20 meters.
Larry beats Curly by 20 meters.
So, By how many meters Moe beat Curly ?
Difficulty Level - 4/5
The three stooges - Moe, Larry and Curly were running in the 100 meter race.
All of them were running at a constant speed throughout the race.Moe beats Larry by 20 meters.
Larry beats Curly by 20 meters.
So, By how many meters Moe beat Curly ?
Difficulty Level - 4/5
The Three Stooges Race - Hint
#96
The three stooges - Moe, Larry and Curly were running in the 100 meter race.
All of them were running at a constant speed throughout the race.
Moe beats Larry by 20 meters.
Larry beats Curly by 20 meters.
So, By how many meters Moe beat Curly ?
Difficulty Level - 4/5
The three stooges - Moe, Larry and Curly were running in the 100 meter race.
All of them were running at a constant speed throughout the race.Moe beats Larry by 20 meters.
Larry beats Curly by 20 meters.
So, By how many meters Moe beat Curly ?
Difficulty Level - 4/5
Testing the Skills Problem
#95
Difficulty Level - 1/5
Difficulty Level - 1/5
Update Your Answers : Click Here
Solution :
A. (C is not correct as It should be 10 boxes of 100 pencils each)
Solution :
A. (C is not correct as It should be 10 boxes of 100 pencils each)
An Easy Riddle
#94
What is greater than God?
More evil than the Devil?
The poor have it,
The rich need it
and
If you eat it you'll die.....
Difficulty Level - 2/5
What is greater than God?
More evil than the Devil?
The poor have it,
The rich need it
and
If you eat it you'll die.....
Difficulty Level - 2/5
Psycho Robber
#93
A Psycho robbed a number of Books from a University Hostel.
When he tried to escape, a student caught him, and asked for equal share of Books. At the end, one Book remained with them, and they started quarrel for that single Book.
Then another Trespasser watched them and asked a share for him. Then the books were divided among 3, where one Book remained again. Likewise the Books were divided among 6 persons who came there. Again, a single Book remained for which all of them raised their voices.
Finally it was equally divided in 7 persons including the Psycho, without any Book remaining.
Can You Say, What Would Be The Number Of Books Robbed By The Psycho?
Difficulty Level - 3/5
A Psycho robbed a number of Books from a University Hostel.
When he tried to escape, a student caught him, and asked for equal share of Books. At the end, one Book remained with them, and they started quarrel for that single Book.
Finally it was equally divided in 7 persons including the Psycho, without any Book remaining.
Can You Say, What Would Be The Number Of Books Robbed By The Psycho?
Difficulty Level - 3/5
Murder Mystery Puzzle
#92
A man was living alone in a flat. Due to his old age , most of the things used to be delivered to his house.
On Thursday Morning, while delivering the milk , Milkman felt something suspicious in the flat and did try to look inside through the key hole and saw the bloody body of man.
When police arrived at the crime scene, they found Bottles of Milk , Monday newspaper, some unopened mails and some gifts outside the flat.
Police found the murderer immediately. How come ?
Who was the murderer ?
Difficulty Level - 2/5
A man was living alone in a flat. Due to his old age , most of the things used to be delivered to his house.
On Thursday Morning, while delivering the milk , Milkman felt something suspicious in the flat and did try to look inside through the key hole and saw the bloody body of man.
When police arrived at the crime scene, they found Bottles of Milk , Monday newspaper, some unopened mails and some gifts outside the flat.
Police found the murderer immediately. How come ?
Who was the murderer ?
Update Your Answers : Click Here
Solution :
Murderer was Newspaper Delivery Man as he didn't deliver the Newspaper since Monday.
Solution :
Murderer was Newspaper Delivery Man as he didn't deliver the Newspaper since Monday.
Tuesday 10 September 2013
Number of Triangles Puzzle
There are 56 Triangles.
Number of Triangles Puzzle - Hint
#91
Total no of Triangles ?????
Difficulty Level - 4/5
Total no of Triangles ?????
Update Your Answers : Click Here
Hint :
There are a number of ways to tackle a problem like this; most are equally valid, but some are significantly more reliable than others. The most typical approach for this type of problem is to determine all the possible triangle shapes, and then determine how many of each type there are. The symmetry of this diagram greatly simplifies the task.
My favorite technique counts the triangle not by shape, but by how many of the 6 star vertices are used. The surprising key observation is that there are NO triangles that don't use one of these six points! The diagram's symmetry further reduces the search space, and the counting turns out to be pretty easy.
Hint :
There are a number of ways to tackle a problem like this; most are equally valid, but some are significantly more reliable than others. The most typical approach for this type of problem is to determine all the possible triangle shapes, and then determine how many of each type there are. The symmetry of this diagram greatly simplifies the task.
My favorite technique counts the triangle not by shape, but by how many of the 6 star vertices are used. The surprising key observation is that there are NO triangles that don't use one of these six points! The diagram's symmetry further reduces the search space, and the counting turns out to be pretty easy.
Probability Problem
#90
Brad Pitt & Angelina Jolie decided to marry in INDIA. So they booked two tickets in a flight.
Angelina Jolie was the first to board to flight to Delhi.
She forgot her seat number and picked a random seat for herself.
After this, every single person who get to the flight sit on his seat if it's available, else chose any available seat at random.
Brad Pitt was the last to enter the flight and at that moment 99 out 100 seats were occupied.
So, Whats the probability of Brad to sit in his own seat ?
Difficulty Level - 3/5
Brad Pitt & Angelina Jolie decided to marry in INDIA. So they booked two tickets in a flight.
Angelina Jolie was the first to board to flight to Delhi.She forgot her seat number and picked a random seat for herself.
After this, every single person who get to the flight sit on his seat if it's available, else chose any available seat at random.
Brad Pitt was the last to enter the flight and at that moment 99 out 100 seats were occupied.
So, Whats the probability of Brad to sit in his own seat ?
Difficulty Level - 3/5
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Solution :
1/2 as there are only two possibilities :-
a) He will sit on his own seat & b) He will not sit on his own seat
Solution :
1/2 as there are only two possibilities :-
a) He will sit on his own seat & b) He will not sit on his own seat
Ciphered Note Problem
#89
Mr Jack was in his house sitting on the sofa. Suddenly, a stone came crashing through his window, breaking it.
Jack got up and looked out the window just in time to see three neighborhood kids (who were brothers) running.
Their names were John Crimson, Mark Crimson and Christ Crimson.
The next day Jack got a note on his door that read
"+ is the One who Broke it" .
Which of the three Crimson brothers should Jack question about the incident?
Difficulty Level - 1/5Mr Jack was in his house sitting on the sofa. Suddenly, a stone came crashing through his window, breaking it.
Jack got up and looked out the window just in time to see three neighborhood kids (who were brothers) running.
Their names were John Crimson, Mark Crimson and Christ Crimson.
The next day Jack got a note on his door that read
"+ is the One who Broke it" .
Which of the three Crimson brothers should Jack question about the incident?
