Last week's challenge was a two-week creative challenge, and was a tough one. Most people are familiar with palindromes, ...

Puzzles also helped Jacobs's parents keep in touch in 1964, during the time his father was stationed in Korea as a lawyer for the military and his mother was still in the U.S.

After the tenth puzzle below, you are presented with a final challenge—to create an equation made up of a subset of the digit answers, which, when added together, produces the answer of 26.