When Is 1500 Plus 20 And 1600 Minus 40 The Same Thing? 20/11/202109/11/2021 by Mr. Riddles Riddle: When is 1500 plus 20 and 1600 minus 40 the same thing?Show AnswerAnswer: Military time Solve More Riddles:I Had 13 Pounds RiddleI Enter the Garden RiddleHow Many 9's Are There Between 1 and 100?When I Take Five And Add Six, I Get ElevenWhat Did One Maths Book Say to Another?7 years ago I was 7 years old 7 years laterHow Many Holes in the Skirt Riddle