A Steel fixer, a painter, and an Electrician applied for jobs with a famous construction firm. From the information given below can you identify each worker's full name, job, and age?
1. Names: abe, Nicholas, Matt. Surnames: Jones, Lincoln, Ryan. Ages: 25, 30, 35 NOT RESPECTIVELY.
2. Jones, the Electrician, is older than abe.
3. Nicholas is the Painter.
4. The Steel fixer is 30 years old.
5. The youngest worker of the three is not called Ryan.
In case it isn't clear:
First Names: Abe, Nicholas and Matt
Last Name: Jones, Lincoln, and Ryan
Jobs: Steel Fixer, Painter and Electrician
Ages: 25, 30, and 35
I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Sunday, April 30, 2006
Friday, April 28, 2006
Into the basket
A basket contains 5 apples. Do you know how to divide them to 5 kids so that each one has an apple and one apple stays in the basket?
Thursday, April 27, 2006
Are you Canadian?
Why can't a man living in the USA be buried in Canada?
If there are 3 apples and you take away 2, how many do you have?
Why do Chinese men eat more rice than Japanese men?
What word describes a woman who does not have all her fingers on one hand?
If there are 3 apples and you take away 2, how many do you have?
Why do Chinese men eat more rice than Japanese men?
What word describes a woman who does not have all her fingers on one hand?
Wednesday, April 26, 2006
Siege
A square medieval castle on a square island was under siege. All around the island, there was 10 metres wide water moat. But the conquerors could make foot-bridges only 9.5 metres long. Nevertheless a wise man was able to figure out how to get over the water. What do you think was his advice?
(There's a place on the other side to put the bridge against, not just a sheer wall. Water moat has square corners - that section of the moat is about 14.1 metres wide.)
(There's a place on the other side to put the bridge against, not just a sheer wall. Water moat has square corners - that section of the moat is about 14.1 metres wide.)
Tuesday, April 25, 2006
Can you see the forest?
You can find roads without cars,
And roam thru forests without trees,
Cities exist without houses?
Whatever can I be?
And roam thru forests without trees,
Cities exist without houses?
Whatever can I be?
Monday, April 24, 2006
Big family
Mr. and Mrs. Smith have six daughters and each daughter has one brother.
How many people are in the Smith family?
How many people are in the Smith family?
Friday, April 21, 2006
Share?
Thursday, April 20, 2006
Family affairs
Five couples each have one child.
Each child is a different age than any of the other children.
Each child has a favorite toy which is different from any of the other children's favorite toys.
Each family eats at only one fast food restaurant.
No two women have the same name and no two men have the same name.
The children's names are not known.
The child who plays with trains is the youngest.
Bill's child plays with GI Joe.
Julie's child likes Pokeman.
Mike's family eats at Taco Bell.
The family of the 4 year old likes Kentucky Fried Chicken.
The oldest child is four years older than Marie's child.
The child who plays with Barbie is 8 years old.
The child with the age is in the middle, has a mother named Marie.
The child in the family that eats at McDonalds has a two year age difference with Larry's child.
Carol is the mother in the family that eats at Dairy Queen.
The child that plays Nintendo likes Burger King.
Steve's child is two years apart in age from the child of the family that eats at Kentucky Fried Chicken.
The child that plays with trains is two years apart from the 6 year old.
The child that eats at McDonalds is two years older or younger than Regina's child.
Lisa's child is 10.
Who is married to George?
Each child is a different age than any of the other children.
Each child has a favorite toy which is different from any of the other children's favorite toys.
Each family eats at only one fast food restaurant.
No two women have the same name and no two men have the same name.
The children's names are not known.
The child who plays with trains is the youngest.
Bill's child plays with GI Joe.
Julie's child likes Pokeman.
Mike's family eats at Taco Bell.
The family of the 4 year old likes Kentucky Fried Chicken.
The oldest child is four years older than Marie's child.
The child who plays with Barbie is 8 years old.
The child with the age is in the middle, has a mother named Marie.
The child in the family that eats at McDonalds has a two year age difference with Larry's child.
Carol is the mother in the family that eats at Dairy Queen.
The child that plays Nintendo likes Burger King.
Steve's child is two years apart in age from the child of the family that eats at Kentucky Fried Chicken.
The child that plays with trains is two years apart from the 6 year old.
The child that eats at McDonalds is two years older or younger than Regina's child.
Lisa's child is 10.
Who is married to George?
Wednesday, April 19, 2006
This is just fun
Solve the puzzle by saying them out loud, over and over, faster and faster, repeating the phrase, until you "hear" the answer. Example: LAWN SAND JEALOUS (place) Answer: Los Angeles
1. SHOCK CUSSED TOE (~a person~)
2. SAND TACKLE LAWS (~a fictional character~)
3. MY GULCH HOARD UN (~a person~)
4. MOW BEAD HICK (~a book~)
5. TALL MISCHIEF HER SUN (~a person~)
6. CHICK HE TUB AN AN US (~a product~)
7. THOUGH TIGHT AN HICK (~a thing~)
8. AISLE OH VIEW (~a phrase~)
9. TUB RAID HEAP HUNCH (~a old TV show~)
10. CARESS TROUGHER CLUMP US (~a person~)
11. DOCKED HEARSE WHOSE (~a person~)
12. THUMB ILL KEY WAKE OWL LICKS HE (~a place~)
13. AGE ANT HUB BLOWS HEAVEN (~a fictional character~)
14. THESE HOUND DOVE MOO SICK (~a movie~)
15. BUCK SPUN HE (~a fictional character~)
I just thought this was fun... It shouldn't be hard.
1. SHOCK CUSSED TOE (~a person~)
2. SAND TACKLE LAWS (~a fictional character~)
3. MY GULCH HOARD UN (~a person~)
4. MOW BEAD HICK (~a book~)
5. TALL MISCHIEF HER SUN (~a person~)
6. CHICK HE TUB AN AN US (~a product~)
7. THOUGH TIGHT AN HICK (~a thing~)
8. AISLE OH VIEW (~a phrase~)
9. TUB RAID HEAP HUNCH (~a old TV show~)
10. CARESS TROUGHER CLUMP US (~a person~)
11. DOCKED HEARSE WHOSE (~a person~)
12. THUMB ILL KEY WAKE OWL LICKS HE (~a place~)
13. AGE ANT HUB BLOWS HEAVEN (~a fictional character~)
14. THESE HOUND DOVE MOO SICK (~a movie~)
15. BUCK SPUN HE (~a fictional character~)
I just thought this was fun... It shouldn't be hard.
Tuesday, April 18, 2006
Title goes here
The title of this book has been put into very fancy language. Can you name the book?
“The objects, or people, have been removed from their previous localities through the power of a naturally moving phenomenon.”
“The objects, or people, have been removed from their previous localities through the power of a naturally moving phenomenon.”
Monday, April 17, 2006
The envelope speaks the truth
There are three envelopes. One has a check in it. You can't touch the envelopes (or look at them through a light or anything like that). Only one envelope has a true statement written on it, the other two are false.
The envelopes have the following writing:
1. This envelope does not have the check
2. This envelope has the check
3. The second envelope does not have the check
Which envelope should you open?
The envelopes have the following writing:
1. This envelope does not have the check
2. This envelope has the check
3. The second envelope does not have the check
Which envelope should you open?
Friday, April 14, 2006
Harder than it looks
If you divide thirty by a half and add ten , what would the answer be?
.
.
.
BTW, it's going to be a busy weekend, so I don't think I'll have any other questions this weekend.
.
.
.
BTW, it's going to be a busy weekend, so I don't think I'll have any other questions this weekend.
Thursday, April 13, 2006
Duck, duck, duck,... Goose!
There are 2 ducks in front of 2 other ducks.
There are 2 ducks behind 2 other ducks.
There are 2 ducks beside 2 other ducks.
How many ducks are there?
There are 2 ducks behind 2 other ducks.
There are 2 ducks beside 2 other ducks.
How many ducks are there?
Wednesday, April 12, 2006
Hopefully, I'll get this puzzle right
The gentlemen Dutch, English, Painter, and Writer are all teachers at the same secondary school. Each teacher teaches two different subjects. Furthermore:
1) Three teachers teach Dutch language
2) There is only one math teacher
3) There are two teachers for chemistry
4) Two teachers, Simon and mister English, teach history
5) Peter doesn't teach Dutch language
6) Steven is chemistry teacher
7) Mister Dutch doesn't teach any course that is tought by Karl or mister Painter.
The Question: What is the full name of each teacher and which two subjects does each one teach?
In case it isn't clear from the clues:
First Names: Simon, Peter, Steven, Karl
Last Names: Dutch, English, Painter, Writer
Each teacher has two classes: Dutch (3), math (1), chemistry (2), history (2)
1) Three teachers teach Dutch language
2) There is only one math teacher
3) There are two teachers for chemistry
4) Two teachers, Simon and mister English, teach history
5) Peter doesn't teach Dutch language
6) Steven is chemistry teacher
7) Mister Dutch doesn't teach any course that is tought by Karl or mister Painter.
The Question: What is the full name of each teacher and which two subjects does each one teach?
In case it isn't clear from the clues:
First Names: Simon, Peter, Steven, Karl
Last Names: Dutch, English, Painter, Writer
Each teacher has two classes: Dutch (3), math (1), chemistry (2), history (2)
Tuesday, April 11, 2006
Arrange the numbers
Arrange the numbers 1 through 9 on a tic tac toe board such that the numbers in each row, column, and diagonal add up to 15.
Monday, April 10, 2006
Two cups
You have two cups, one containing orange juice and one containing and equal amount of lemonade. One teaspoon of the orange juice is taken and mixed with the lemonade. Then a teaspoon of this mixture is mixed back into the orange juice. Is there more lemonade in the orange juice or more orange juice in the lemonade?
Sunday, April 09, 2006
Five Houses
Five adjoining terraced houses, numbered consecutively from 1-5 are each painted in three different colors of the rainbow. Can you discover the colors of the walls, windows and front doors of each house?
1. The house with an orange front door and indigo walls isn't No 3 (which has green windows).
2. No 2 has yellow walls and red windows. No 5 has a red front door.
3. The house with orange walls and blue windows is directly next door to the house with a green front door and violet walls.
House No: 1, 2, 3, 4, 5
Walls Color: Red, Green, Blue, Orange, and Yellow
Door Color: Red, Yellow, Orange, Violet, and Indigo
Window Colors: Red, Green, Blue, Violet and Indigo
1. The house with an orange front door and indigo walls isn't No 3 (which has green windows).
2. No 2 has yellow walls and red windows. No 5 has a red front door.
3. The house with orange walls and blue windows is directly next door to the house with a green front door and violet walls.
House No: 1, 2, 3, 4, 5
Walls Color: Red, Green, Blue, Orange, and Yellow
Door Color: Red, Yellow, Orange, Violet, and Indigo
Window Colors: Red, Green, Blue, Violet and Indigo
Friday, April 07, 2006
Pick a card
How good are you at magic?
I ask Alex to pick any 5 cards out of a deck with no Jokers.
He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Peter can't see any of this). I look at the cards and I pick 1 card out and give it back to Alex. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Peter.
Peter looks at the 4 cards i gave him, and says out loud which card alex is holding (suit and number). How?
The solution uses pure logic, not slight of hand.
I ask Alex to pick any 5 cards out of a deck with no Jokers.
He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Peter can't see any of this). I look at the cards and I pick 1 card out and give it back to Alex. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Peter.
Peter looks at the 4 cards i gave him, and says out loud which card alex is holding (suit and number). How?
The solution uses pure logic, not slight of hand.
Thursday, April 06, 2006
10 km walk... ugggh
A 120 wire cable has been laid firmly underground between two telephone exchanges located 10km apart.
Unfortunately after the cable was laid it was discovered to be the wrong type, the problem is the individual wires are not labeled. There is no visual way of knowing which wire is which and thus connections at either end is not immediately possible.
You are a trainee technician and your boss has asked you to identify and label the wires at both ends without ripping it all up. You have no transport and only a battery and light bulb to test continuity. You do have tape and pen for labeling the wires.
What is the shortest distance in kilometers you will need to walk to correctly identify and label each wire?
Unfortunately after the cable was laid it was discovered to be the wrong type, the problem is the individual wires are not labeled. There is no visual way of knowing which wire is which and thus connections at either end is not immediately possible.
You are a trainee technician and your boss has asked you to identify and label the wires at both ends without ripping it all up. You have no transport and only a battery and light bulb to test continuity. You do have tape and pen for labeling the wires.
What is the shortest distance in kilometers you will need to walk to correctly identify and label each wire?
Wednesday, April 05, 2006
The warden
The warden meets with 23 new prisoners when they arrive. He tells them, "You may meet today and plan a strategy. But after today, you will be in isolated cells and will have no communication with one another.
"In the prison is a switch room, which contains two light switches labeled 1 and 2, each of which can be in either up or the down position. I am not telling you their present positions. The switches are not connected to anything.
"After today, from time to time whenever I feel so inclined, I will select one prisoner at random and escort him to the switch room. This prisoner will select one of the two switches and reverse its position. He must move one, but only one of the switches. He can't move both but he can't move none either. Then he'll be led back to his cell.
"No one else will enter the switch room until I lead the next prisoner there, and he'll be instructed to do the same thing. I'm going to choose prisoners at random. I may choose the same guy three times in a row, or I may jump around and come back.
"But, given enough time, everyone will eventually visit the switch room as many times as everyone else. At any time anyone of you may declare to me, 'We have all visited the switch room.' and be 100% sure.
"If it is true, then you will all be set free. If it is false, and somebody has not yet visited the switch room, you will be fed to the alligators. You will be carefully monitored, and any attempt to break any of these rules will result in instant death to all of you"
What is the strategy they come up with so that they can be free?
Show Hint Show Solution
Hint: Take a long-term perspective. Solve the puzzler for three prisoners, then do it for 23 prisoners.
"In the prison is a switch room, which contains two light switches labeled 1 and 2, each of which can be in either up or the down position. I am not telling you their present positions. The switches are not connected to anything.
"After today, from time to time whenever I feel so inclined, I will select one prisoner at random and escort him to the switch room. This prisoner will select one of the two switches and reverse its position. He must move one, but only one of the switches. He can't move both but he can't move none either. Then he'll be led back to his cell.
"No one else will enter the switch room until I lead the next prisoner there, and he'll be instructed to do the same thing. I'm going to choose prisoners at random. I may choose the same guy three times in a row, or I may jump around and come back.
"But, given enough time, everyone will eventually visit the switch room as many times as everyone else. At any time anyone of you may declare to me, 'We have all visited the switch room.' and be 100% sure.
"If it is true, then you will all be set free. If it is false, and somebody has not yet visited the switch room, you will be fed to the alligators. You will be carefully monitored, and any attempt to break any of these rules will result in instant death to all of you"
What is the strategy they come up with so that they can be free?
Show Hint Show Solution
Hint: Take a long-term perspective. Solve the puzzler for three prisoners, then do it for 23 prisoners.
Tuesday, April 04, 2006
Do you have this on your desk?
A corporate businessman has two cubes on his office desk. Every day he arranges both cubes so that the front faces show the current day of the month.
What numbers are on the faces of the cubes to allow this?
Note: You can't represent the day "7" with a single cube with a side that says 7 on it. You have to use both cubes all the time. So the 7th day would be "07".
What numbers are on the faces of the cubes to allow this?
Note: You can't represent the day "7" with a single cube with a side that says 7 on it. You have to use both cubes all the time. So the 7th day would be "07".
Monday, April 03, 2006
Dinner Party
Yesterday evening, Helen and her husband invited their neighbours (two couples) for a dinner at home. The six of them sat at a round table. Helen tells you the following:
* "Victor sat on the left of the woman who sat on the left of the man who sat on the left of Anna.
* Esther sat on the left of the man who sat on the left of the woman who sat on the left of the man who sat on the left of the woman who sat on the left of my husband.
* Jim sat on the left of the woman who sat on the left of Roger.
* I did not sit beside my husband."
The Question: What is the name of Helen's husband?
* "Victor sat on the left of the woman who sat on the left of the man who sat on the left of Anna.
* Esther sat on the left of the man who sat on the left of the woman who sat on the left of the man who sat on the left of the woman who sat on the left of my husband.
* Jim sat on the left of the woman who sat on the left of Roger.
* I did not sit beside my husband."
The Question: What is the name of Helen's husband?
Saturday, April 01, 2006
Looking for a job?
A Steel fixer, a painter, and an Electrician applied for jobs with a famous construction firm. From the information given below can you identify each worker's full name, job, and age?
Names: Ashraf, Nader, Maher.
Surnames: Fathy, Khedr, Badr.
Ages: 25, 30, 35
1. Fathy, the Electrician, is older than Ashraf.
2. Nader is the Painter.
3. The Steel fixer is 30 years old.
4. The youngest worker of the three is not called Badr.
Names: Ashraf, Nader, Maher.
Surnames: Fathy, Khedr, Badr.
Ages: 25, 30, 35
1. Fathy, the Electrician, is older than Ashraf.
2. Nader is the Painter.
3. The Steel fixer is 30 years old.
4. The youngest worker of the three is not called Badr.
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