Decode the decimal sum:

           T H I S
     +       I S A
     +   G R E A T
     +     T I M E
       -----------
       W A S T E R

Same letter, same digit; different letters, different digits.

I too did a computer aided solution but erroneously neglected to preclude zeroes from any of the first digits (T, I, G, & W) - DOH!.  The first solution my program came up with was the same one that Charlie posted.  But then I came up with four more solutions all of which have the W = 0:

  3624
   249
 87193
  3251
------
094317

  8456
   563
 19238
  8572
------
036829

  7681
   814
 25347
  7893
------
041735

  4215
   158
 76984
  4139
------
085496

I guess that means that THIS ISA GREAT TIME ASTER! :-)

Posted by Sing4TheDay on 2008-12-31 17:39:05