Are you interested in mathematics? Well, here's a puzzle for you. These following 5 numbers are all ordinary numbers represented in 12-base system in a way that I invented myself and therefore you have 11 individual digits plus 12 to work with. Try and see if you can solve them. You can also find out the logic behind this system as you go along. Have fun!

1: 12-to-5

2: 12-and-1

3: 8-with-1

4: 12-and-3-to-2

5: 12-to-4-with-2

Also, if this forum is not the right place for this thread, be sure to tell me in advance.