World-famous as the puzzlemaster who wrote the Mathematical Games column of Scientific American magazine for 25 years, Martin Gardner has also written close to 70 books, on such subjects as science (including a book that Time magazine called by far the most lucid explanation of Einsteins theories), mathematics, philosophy, religion, poetry, literary criticism (including The Annotated Alice, a classic examination of Alice in Wonderland that is still selling large numbers of copies now, 40 years after it was first published) and, of course, puzzles (out of 29 puzzle books for adults and children, only one is out of print!).
The son of an Oklahoma wildcat oil prospector, Gardner attended the University of Chicago, where he received a degree in philosophy. After graduation he worked on the Tulsa (Oklahoma) Tribune. He sold his first story to Esquire, published articles on logic and math in specialist magazines and became a contributing editor to Humpty Dumptys Magazine before starting his legendary column.
Martin Gardner has had a lifelong passion for conjuring, and many of his original magic tricks have become classics among magicians.
Dubbed The Magician of Math by Newsweek, Martin Gardner, now retired, makes his home in North Carolina, where he continues to amaze his fans with more and more books, articles and ideas.
The Professor Predicts
Here are Professor Picanumbas predictions: the answers that he foresaw or said that you would likely give in doing these tests. A marvelous gift to have, isnt it!
An ABCABC Number
The number on display is the three-digit number you first thought of!
Another Calculator Surprise
The surprise is that the digits 1 through 9 are now in serial order starting with 1.
To make the tossed ball come back, toss it straight up in the air.
Another Calculator Test
You stopped your count on the heart.
Around the Circle
The count ends on the spiral.
Around the Solar System
If you moved correctly, the dime is on Pluto.
Around the Square
Your count ended on the letter D.
At the Apex
The triangles top digit is 4.
Beast, City, Vegetable
Professor Picanumba guesses that the words are lion, Paris, and carrot.
A Calculator Test
The calculator displays 5.5.
Cards that Shake Dice
The sum of all the dice throws is 84.
Catch the Bill
You cant catch the bill before it drops.
Count the Clips
There are six paper clips left in the box.
A Curious Count
The number of undealt cards is 8.
The Curious Q
The last symbol you tapped is the star.
Deal and Switch
The thirteen spades are back in their original order, ace to
king, with the ace on top.
A Domino Chain
The spots at the end of the domino chain will be 2 and 5.
Drop the Coin
Impossible, says Professor Picanumba.
An 8-Card Test
The four cards will have a sum of 38.
End of a Chain
The number that ends the chain is 495.
The Exact Word
The exact word. Sorry about that!
Face-Up Cards
The difference is zero. The number of face-up cards in one pile will exactly equal the number of face-up cards in the other pile!
Five Coins
The folder is on the nickel.
Five in a Row
Professor Picanumba is not always right on this one, but he thinks you selected the four of hearts.
Fold and Trim
The face-up numbers will have the sum of 68.
A Four-Dice Test
The sum of the top faces of the four dice is 14.
Four File Cards
The product of the numbers on the file cards is 5,860,920.
Four Kings
The four cards on top of each pile are the four kings.
Four Knights
The four colors are each white.
Four Queens
The four cards are the four queens!
Funny Fractions
The difference is zero.
A Geometry Test
Professor Picanumba isnt sure, but he suspects you either put a circle inside a triangle, or a triangle inside a circle.
The GRY Test
The word you thought of was either hungry or angry.
You were born within four days of Wednesday, and the cowboys horse was named Friday.
Heads or Tails?
There will be more heads than tails.
In Praise of Blue
The word is blue.
In Praise of Red
The word is red.
Insect, Animal, Bird
Professor Picanumba guesses that you wrote ant, tiger, and robin.
A Letter in Washington
The letter in Washington is O. Professor Picanumba isnt positive he got this right, but he is almost certain he did.
Lincoln Up or Down?
The answer is yes. Professor Picanumba apologizes for this swindle because no matter which way the bill falls, he cant lose. On the back of the five dollar bill there is another picture of Lincoln. It shows him seated in front of the Lincoln Memorial in Washington, D.C.
The Magic of 8
The final digit is 8.
The Missing 8
The digit you selected is repeated in the display nine times. Professor Picanumba adds: Try dividing any digit except 0 by 9.
Monkey Business
Youd have six bananas left. (Its important to read tests carefully.)
A Mysterious Matrix
The sum of the six circled numbers is 111.
Nation, Animals, Fruit
The five words are Denmark, elephant, gray, kangaroo, and orange.
As for your shoes, you got em on your feet!
Nine-Card Spell
The reversed card is fifth from the top.
Number, Flower, Color
Professor Picanumba isnt positive, but his best guesses are 37, rose, and blue.
Number Names
The number that ends the chain is 4.
Odd or Even?
The number of face-up cards is odd.
One, Two, Three
The word is the.
Pairing Cards
The difference is 4. There will be four more cards in the face-down pile than there are cards in the face-up pile.
A Peculiar Series
Check the last two numbers of the year that this book was published. Its on page 2, the copyright page which comes right after the title page, after the symbol .
The Red and the Black
The difference between the black and the red cards is 4.
The product of all ten digits is zero.
A Remarkable Number
The six-digit number is 124578.
Reverse, Subtract, Add
The word is star.
The Rotated Die
The sum is odd.
A Rotating Matrix
The count ended on a cross.
Rotating Spoon
Professor Picanumba says that no matter how hard you try, when you catch the spoon its bowl will be right side up. He says he doesnt know why this is always the case.
The Rotating Tubes
The yardstick travels to one side until it falls off the tubes.
A Row of Nine
The rows nth card is four.
Mr. Jones was walking his dog Naked, a perfectly capital fine thing to do. (Remember to capitalize proper nouns.)