Did you solve it? Turn it up to 11

Earlier today I set you the following two puzzles: 1) Why is every even digit palindrome divisible by 11? (An even digit palindrome is a palindromic number that contains an even number of digits, like 1221, or 678876.) Solution There are different ways to solve this one. My method is perhaps the least technical, but…

Can you solve it? Turn it up to 11

Legs eleven, Ocean’s Eleven, elevenses! Yes, let’s hear it for the number 11, star protagonist of today’s puzzles. Eleven is the first number you reach once you go beyond ten. Since ten is the base of our number system, eleven’s position gives it some interesting properties – as the members of Spinal Tap knew all…