







Ben's favourite numbers 
20110803 

From Luke: Ben challenges you to guess his favourite numbers by using the following three clues:
Each number is a fourdigit odd number.
Each is a palindrome
The digits of each number add up to 10
None of the numbers are divisible by 5 Answered by Robert Dawson. 





A palindrome 
20071213 

From pradip: I have discovered that for any ndigit number, when it's terminal digits are reversed,e.g.,1729 & 9721 & the resulting combinations are subtracted, the resulting solution is always a multiple of 9 & when this multiple of 9 is divided by 9, we will always get a palindrome, Example 1234 & 4231, 42311234=2997/9=333., please I am not sure about the above fact, would please help me in confirming my discovery. Answered by Harley Weston. 





Palindromes 
20070904 

From ANJUM: Are there palindromes in decimals and fractions? Answered by Harley Weston. 





A square palindrome 
20060911 

From Liz: What is the least threedigit palindrome that is a square number? Answered by Stephen La Rocque. 





What is the least threedigit palindrome that is a square number? 
20050212 

From Ben: What is the least threedigit palindrome that is a square number? Answered by Chris Fisher and Penny Nom. 





A palindrome question 
20040928 

From Lilly: 12, 21, 13, and 31 are the only doubledigit numbers whose squares are the palindromes of the squares of the palindromes of doubledigit numbers. I was wondering why it works for these numbers, and if only these numbers work this way. Answered by Chris Fisher and Penny Nom. 





Four digit palindromes 
20030505 

From Heather: How many palindromes were in between the numbers 1000 and 9999? Answered by Penny Nom. 





A dog and a rabbit 
20010209 

From Josh:
1. A dog and a rabbit are 160 meters a part for every 9 meters that the dog runs , the rabbit jumps 7 meters. How many meters must the dog run in order to vertake the rabbit??? 2. A cars odometer reads 15951 KM. Find the least number of kilomaters to travel until the palindromic number appears??? Answered by Leeanne Boehm. 





Five digit palindromes 
20001112 

From Jacky: Positive integers such as 1287821 and 4554, in which the number is unchanged when the digits are reversed, are called palindromes. The number of fivedigit integers larger than or equal to 10,000 which are not palindromes is... a. 10 000 b. 81 000 c. 89100 d. 90 000 e. 99 100 Answered by Penny Mom. 





Palindrome 
19991006 

From Chris Ware: What is a non paladromic number? Answered by Claude Tardif. 





A palindrome 
19990216 

From panajoti: Find the smallest number that must be added to 70808 so that the digits would read the same backward or forward. Answered by Penny Nom. 





Will this always yield a palindrome? 
19960828 

From Andy Golden: My friend Justin Skywatcher, said that when his children were in 6th grade, they were taught that if you take any number, reverse it and add the two together, a palindrome will result. If not, continue performing the above operations, and a palindrome will eventually result. Will this always yield a palindrome? Answered by Chris Fisher. 

