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Logic Puzzles

By popular request a Logic Puzzle department is being added next door to our famous Mathematical Puzzles. Winners will be inducted into the Logicians Hall of Fame, solutions posted, and new challenges introduced.

Logicians

Hall of Fame

Solutions to

Last Puzzle

The New

Challenges

Challenges! How are your skills in THESE areas? Click in box to see.


Baseball Trivia
Contest

Soccer Trivia
Contest

Soccer Laws
Contest

Baseball
Riddles

Trivia
Contest

Mathematics
Contest

Logic
Contest

Latin Lovers
Contests

Entrance to the Puzzle Center

BIT HUB


Copyright (c) 2016 by Gary and Bonnie Blank and Engineering Update Institute. ALL RIGHTS RESERVED.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Logicians Hall of Fame

Congratulations to the following logicians who have been inducted into this Shrine.

Mark A.Hays, Lafayette, California, USA

Dinesh Kumar, Bangalore, India

Sara Cepeda, Memphis, Tennessee, USA

Mike Katinsky, Atlanta, Georgia, USA

Barbara Brown, Hilo, Hawaii, USA

Dan Kurtz, San Francisco, California, USA

Avril Sobolik, Boston, Massachusetts, USA

Alan Gould, Huntington Beach, California, USA

L.N. Story, Duncanville, Texas, USA

Shawn Adams, Millbury, Massachusetts, USA

Scott Bledsoe, Jacksonville, Florida, USA

Charles ?, Philippines

Elizabeth Gubbins, London, England

M. Prakash, Cts, Chennai

David Hurowitz, Somewhere, USA

Jessica Hwang, Toronto, Canada

Rowdy Westbrook, Harper, Texas, USA

Patty Heilmann, Johnstown, Pennsylvania, USA

Dan Bowden, Sydney, Australia

Marc Dziuba, Mickleton, New Jersey, USA

Nathan Willard, New Haven, Connecticut, USA

Ed Attel, Keller, Texas, USA

Brandon Lenenski, Mount Berry, Georgia, USA

Andy Blank, El Cajon, California, USA

Chad Gillis, Winnipeg, Canada

Karl Junderburk, Flastonbury, Connecticut, USA

Jennifer Trudeau, Dayville, Connecticut, USA

Matt Moomey, Manhattan, Kansas, USA

Katja Frisch, Mainz, Germany

Tenille Graf, Toowoomba, Australia

Harry Toromanides, Somewhere, New York, USA

Ryan Broe, Prospect, Connecticut

Dinesh Kumar, Bangalore, India

Alejandro Ramirez, Cambridge, Massachusetts

Rowdy Westbrook, Harper, Texas

Ben ?

Solutions to the Last Logic Puzzle

This Way to the New Logic Challenges

Entrance to Logic Puzzles

STADIUM Entrance


Copyright (c) 2016 by Gary and Bonnie Blank and Engineering Update Institute. ALL RIGHTS RESERVED.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solutions to Last Puzzles

Problems

Scroll slowly to delay seeing the answers ( if you have not seen these puzzles before and you want to see if you would have made it to the HALL OF FAME).

1. A box contains many marbles.

Some are blue, some are green, some are red, and some are yellow.

On a balance scale one blue marble balances three green marbles;
one green marble balances four yellow ones plus one red one,
and one red one balances two yellow ones.

How many yellow marbles will it take to balance one blue one?

2. Four students arrived at the party driving colorful cars. The students were Alan, Betty, Charlie, and Denise.

From the following statements, all of which are true, can you tell the order of arrival and the color of each student's car?

The colors of the cars are blue, gold, purple, and white.

1. The four students were Charlie, the student who arrived second, the student with a white car , and Alan.

2. Charlie did not arrive first, and Denise was not the student who arrived just before him.

3. Denise's car was not white.

4. Betty arrived just before the student whose car was blue, who was not Charlie.

5. Alan's car was not purple.

Solutions to Last Puzzles

Solution #1

18

Solution #2

First, Betty, white;
Second, Denise, blue;
Third, Alan, gold;
Fourth, Charlie, purple.

This Way to The Logicians Hall of Fame

This Way to the New Challenges

Entrance to Logic Puzzles

Entrance to the Puzzle Center

BIT HUB


Copyright (c) 2016 by Gary and Bonnie Blank and Engineering Update Institute. ALL RIGHTS RESERVED.

 

 

 

 

 

 

 

 

 

 

 

 

 

THE NEW CHALLENGES

1. An urn contains one gold coin and one silver coin. A second urn contains two gold coins and one silver coin.

A coin is drawn at random from the first urn and dropped into the second urn. Then a coin is drawn from the second urn.

Question: What is the probability that the coin drawn from the second urn will be a gold coin?

2. In a strange village in cyberspace the inhabitants are "truthers" or liars depending not only on the day of the week but also on whether the day is fair or rainy.

Three inhabitants are met. It is known that Amy lies on fair Tuesdays, fair Thursdays, and fair Saturdays, and on rainy Mondays, rainy Wednesdays, and rainy Fridays. At all other times she tells the truth.

On the other hand, both Bonnie and Cybil lie on fair Mondays, fair Wednesdays, and fair Fridays, and on rainy Tuesdays, rainy Thursdays, and rainy Saturdays. At all other times they tell the truth.

Amy, Bonnie, and Cybil make the following statements.
Amy: It is raining and today is Tuesday
Bonnie: It is fair or today is Tuesday
Cybil: It was not Wednesday yesterday and it will not be Wednesday tomorrow.

Questions

1. What day of the week is it? 2. Is it fair or is it raining?

Submit your answers on the Logic Puzzle Entry Form. If you include your e-mail address we will send you the contest results, or come back here at the end of the contest for correct answers and winners.

Logic Puzzle Solutions

1. What day of the week is it? The answer is
2. Is it fair or is it raining? The answer is
Name:
City/State/Zip/Country:
E-Mail:
Please help us - what brought you to this site? Refered by a friend? Or search engine? Which one? Words used in engine? Thanks for your help.

Check back for new puzzles and to see if YOU are in the HALL OF FAME

This Way to The Logicians Hall of Fame

Solutions to Last Puzzle

Entrance to Logic Puzzles

Entrance to the Puzzle Center

BIT HUB


Copyright (c) 2016 by Gary and Bonnie Blank and Engineering Update Institute. ALL RIGHTS RESERVED.