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Green Wall Challenge #1

This first problem comes in two parts, and a bit of mind reading. The parts are different in obvious ways. Solve them both, then read my mind, to do this you may have to ponder for a while the nature of the two parts of the challenge already completed. The winning solution will describe accurately what it is I am aiming for. It isn’t terribly deep, so give it a go in the spirit of fun and joy it is meant. First Problem The Lion, Llama, and Lettuce tri-lemma. There once was a farmer who was taking three items to ...
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Logic Puzzles

Fencing Numbers

Posted on May 12, 2014 by Dave Youngs • 0 Comments

This week’s Puzzle Corner activity is a simplified version of a game called Fences. The original version has a 10 x 10 dot grid with the digits 0, 1, 2, and 3 spread repeatedly throughout. Each digit represents the number of line segments that will surround that square in a valid solution. For example, a… Continue Reading

Linking Bridges

Posted on January 27, 2014 by Dave Youngs • 4 Comments

In this week’s puzzle students are presented with a page showing several islands that are all numbered. The challenge is to connect all of the islands with bridges so that the number on the island corresponds to the number of bridges going to it or from it. Additionally, other rules must be followed, including that… Continue Reading

The Frustrated Farmer

Posted on December 2, 2013 by Dave Youngs • 0 Comments

This week’s puzzle has been around for many years. It is one of a family of puzzles which have varying degrees of difficulty. These puzzles usually have three common characteristics. First, they all involve getting something across a river (or pond) in a boat. Second, one or more of the things in each puzzle is… Continue Reading

Cab Conundrum

Posted on September 9, 2013 by Dave Youngs • 1 Comment

This week’s puzzle is a modification of a brain teaser that has been around for many years—the hotel problem. In the original version of the mathematical paradox, three men pay ten dollars each for a thirty dollar hotel room. Later, they receive a five dollar refund. Because they cannot easily split the five dollars, they each… Continue Reading

Matching Marbles

Posted on August 19, 2013 by Dave Youngs • 3 Comments

This activity fits in a category normally called logic problems. Logic problems usually don’t require calculations of any sort, making them different from most other math problems. To solve these types of problems, logical or mathematical thinking must be used. Matching Marbles is a perfect example of this type of problem because to solve it, students must… Continue Reading

Lettering Logic

Posted on July 15, 2013 by Dave Youngs • 1 Comment

This week’s Puzzle Corner activity challenges students to find the “logic” or rule behind a pricing scheme for wooden letters when given a number of examples. In order to do this, students need to look carefully at the letters and the related costs and try to uncover the pricing logic used and then apply it to a new name and their… Continue Reading

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