Reply To: The Riddle Thread…. Home › Forums › Decaffeinated Coffee › The Riddle Thread…. › Reply To: The Riddle Thread…. March 15, 2009 2:37 am at 2:37 am #1068360 anon for thisParticipant Dr. Pepper, I found that hat riddle in an ad (I think for a consulting/ finance firm) in the Wall Street Journal this week.