Each week we feature a new puzzle that you
can print out in black and white on a single page and use as a
black line master with your students. Schools have reported great
success by encouraging families to work on the puzzles together at
home. Print out the PDF file, file the solution page and make
copies of the Challenge page to hand out to your students.
I need to get 21 pigs, in 4 different stalls, and i have to have a odd
number in each stall. i seen this in a magazine. And i need some help. I
dont think it can work..
A set of chairs has to be arranged along the walls of a rectangular
dance hall in such a way that there are an equal number of them along
each wall. What pattern to choose for this?
A funny C letter states it can be folded from some capital letter and
only within one fold. But what letter it can be if C insists it was not
a capital L?
Enter a garden maze at one entrance, then pass through the maze's center
and after that leave it on the opposite side. That is the simple
objective of the Maze at Hatfield House.
When the four arrows on the four keys are replaced with some respective
letters on them, a very familiar word can be typed with those keys. What
word it could be?
Another gem in our series of puzzles where several things should be
placed so that each of them touches every other. This time you'll
need... six and more pencils.
Another gem in our series of puzzles where several things should be
placed so that each of them touches every other. This time you'll
need... six and more pencils.
A train engine that was pulling over a hundred cars loaded with freight
came to a stop at a junction. The engine detached and a new train engine
backed up and coupled onto the long line of freight cars. The new engine
then tried to move forward... but was unable to budge the long line of
heavy freight cars...
Two weighings are required to identify the heavier thing among the four
identical ones. Two weighings are required for the nine things as well.
But how on it in the latter case?..
What is the shortest trip for a spider to get from one spot on a
rectangular box to another? Does the straight and clear line that it
seems to be at first sight will be the shortest?
Three pencils are drawn on the surface of a cylinder. When you rotate
the cylinder clockwise you'll discover that the three pencils turned...
into just too. How this could happen?
The four bugs standing in the corners of a square start to crawl one
toward each other. Here comes the question: How far does each bug travel
before they all meet?
It is easy to place 7 chess knights on a 3x3 board. But it becomes a
little bit different when there is a rule to move the knight after you
place it on the board, don't you say?
The four identical pieces can be simultaneously used to form a Greek
cross and a perfect square. Can you discover both of these shapes? Any
ideas how on it?
Can you divide a circular table top into the fewest number of pieces so
that they could be rearranged into the seats of two oval stools with
open handholds?
Everybody knows how it's pleasant to play with marbles. To make it more
puzzling we simply place marbles of four different colors onto nine
squares and... the Marbles & Rows puzzle appeared! Enjoy!
This geometrical problem is about an elegant and neat way how to figure
out the exact area of the overlapping of two squares. Don't you want to
discover this way by yourself?
As Mr. Hackett picks up his
morning paper, one of the sheets slips out. Simply by seeing the two
numbers on the pages facing you, can you deduce how many pages are in
the whole paper?
Mrs. Holderman, the math teacher,
has given Karen a special math problem. She is to arrange the numbers
from 1 to 6 in the triangle so that the sum of each straight line of
three circles gives the same result. How would you place the numbers?
