Below is a list of our previous challenge questions
2017
| January | #41 04/01/2017 #42 16/01/2017 #43 30/01/2017 |
| February | #44 13/02/2017 #45 27/02/2017 |
| March | #46 13/03/2017 #47 27/03/2017 |
| April | #48 10/04/2017 #49 24/04/2017 |
| May | #50 08/05/2017 #51 22/05/2017 |
| June | #52 05/06/2017 #53 19/06/2017 |
| July | #54 03/07/2017 #55 17/07/2017 #56 31/07/2017 |
| August | #57 14/08/2017 |
2016
