Answers

2016-06-22T21:15:04+08:00
2,4,6,8,10,12 or any number divisible by 2
0
2 4 6 8 10 12 14 16 18 20 and all numbers divisible by 2
2016-06-22T21:17:00+08:00
2 4 6 8 10 12 14 16 18 20 and all numbers divisible by 2
0