## Search form

Scroll down to find the answer key for each puzzle!

Count the Monkeys

This problem is a version of the vanishing puzzle made famous by Sam Lloyd's 1898 Get Off the Earth puzzle. Students should count 15 monkeys in position A, and 14 monkeys in position B. There is no disappearing monkey because the two circles contain, not monkeys, but bits and pieces of monkeys. Turning the inner circle rearranges those bits and pieces to form different numbers of monkeys. See if students can find the pieces that "move" from one monkey to another when the inner circle is turned.

Balloons should be colored as follows: 3 red, 2 yellow, 4 blue, 6 green, 5 white.

What's For Lunch?

 Rachael Hot Dog Salad Milk Pudding
 Fran Tuna Roll Carrots Milk Apple
 Ellen Hot Dog Salad Milk Pudding
 Tamika Tuna Roll Pretzels Juice Ice Cream
 Patty Pizza Pretzels Juice Pudding
 Matt Hot Dog Carrots Juice Apple

Together, the five shapes contain 8 right angles, 6 acute angles, and 5 obtuse angles. Encourage students to check their answers by measuring each of the angles. The five shapes can be combined as shown below to form a single square.

The Tall and Short of It

Nametags should read left to right in the following order: blank, BethAnn (3'9"), Alex (3'10"), Ruth (3'11"), blank, Marisol (4'0"), Raymond (4'1"), Amy (4'2"), Pablo (4'3"),Suri (4'4"), Charles (4'5"), Sarah (4'8"), Brad (4'10").

The Hot Dog Stand

There are a number of possible solutions to this puzzle, including the ones below. Individual students' solutions will vary. Some of the prices Harry might charge during the summer are:

 HARRY'S PLACE Hot Dogs Drinks Snacks \$1.60 \$1.38 \$1.12
 HARRY'S PLACE Hot Dogs Drinks Snacks \$1.68 \$1.31 \$1.20
 HARRY'S PLACE Hot Dogs Drinks Snacks \$1.83 \$1.61 \$1.30

Some of the prices Harry might charge during the winter are:

 HARRY'S PLACE Hot Dogs Drinks Snacks \$1.28 \$1.16 \$1.03
 HARRY'S PLACE Hot Dogs Drinks Snacks \$1.23 \$1.18 \$1.06
 HARRY'S PLACE Hot Dogs Drinks Snacks \$1.26 \$1.13 \$1.08

How Many Squares?

There are 21 squares in the picture. Go to this page for the solution or look below.

Car Shopping

 BEETLE 222,444
 MUSTANG 73,937
 PICKUP TRUCK 98,989
 SUV 171,696
 VOLVO 42,924
 HYBRID 21,642

The Bird or the Egg?

Look below for the solutions.

Roll 'Em

Puzzling Columns

Below is one possible solution. Any combination in which no row or column contains two pieces of the same shape or color appears is an acceptable solution.

George Island

Missing Numbers

The missing number in each puzzle is 13.
In the first and third puzzles, the outer numbers add to the inner number.
In the second puzzle, the center number is the product of the outer circle numbers.

The Creatures in My Yard

Vacation Travels

What's My Number?

(The middle column is the product of the two outer columns -- with the numerals reversed.)

Birthday Balloons

Jenny's mom bought 18 balloons.

Sam took 1/6 of the original 18 balloons, or 3 balloons, leaving 15 balloons. Maggie then took 1/5 of those, or 3 balloons, leaving 12 behind. Next, Johnny too Â¼ of those, again, taking 3 balloons, leaving 9 behind. Lucy left next, taking 1/3 of them, which was also 3 balloons, leaving 6 balloons. Paul took half of the 6 balloons, leaving 3.

Measurement Mania

1. Eleven cheerleaders are on the field. A cheerleader is at one end -- at the 0 yard line -- and then one cheerleader is at every yard line until the 100 yard line, for a total of 11 cheerleaders.

2. The folded flag will be 1 5/8 inches wide. The flag is 5 feet -- or 60 inches -- wide. Folding it once would result in a width of 30 inches; the second fold would make it15 inches; 7 Â½ inches on third fold; 3 Â¼ inches on the fourth fold; and finally, 1 5/8 inches on the fifth fold.

3. The ribbon will be cut into 5 pieces. Each piece will be 2 feet long.

4. The bleachers will hold 1000 fans: Each row is 125 feet -- or 1500 inches -- long. If each fan takes up 15 inches, each row will hold 100 fans. Ten rows will hold 1000 fans.

5. At the 11th possession, the quarterback moved the ball less than an inch.

Sweet Fractions

1. 24 candies contain nuts.

2. 12 pieces are chewing gum.

3. 36 candies are made of milk chocolate.

4. 16 candies contain coconut.

5. 18 pieces have cherry centers.

6. 8 candies are sugar free.

Daisy Hill Puppy Farm

1. Beatrice will have 36 puppies to sell.

2. It will cost Beatrice \$1,920 to buy and take care of the mother beagles until the pups are born: 6 beagles at 2 for \$160 is \$480; 6 beagle houses at \$60 each is \$360; pound of food for 6 dogs for 60 days at \$6 a pound is \$1,080.

3. It will cost Beatrice \$1,656.00 to feed 6 mothers and 36 pups meals and snacks until the pups are old enough to be sold.

4. If Beatrice sells 36 puppies for \$100 each, she'll make a total profit of \$24.

Oink & Cluck

Summer Slushies

Mano drank 3 cherry slushies.
Hank drank 1 grape slushie.
Will drank 2 orange slushies.
Jasper didnât have a slushie at all.
No one ordered a raspberry slush.

Education World®