In a cipher system, for example, each letter is replaced with a number. To make it more complicated, each letter can be substituted with several different numbers, making it harder to identify a ...

Timeless in Texas Letter perfect: Decoding Social Security ‘claim’ numbers Social Security recipients’ claim number is simply their own Social Security number with a letter symbol following it.

High school students are getting their financial aid letters right about now. And they might need some extra help decoding these forms as they make their decisions on which college they want to ...