Sample Missing Even Number

Find the missing even number.
1. 8,10,12,14,
2. 18,20, ,24,26
3. 42, ,46,48,50
4. 26,28, ,32,34
5. 58,60,62, ,66
6. 44, ,48,50,52
7. 52,54,56,58,
8. ,74,76,78,80
9. 38,40,42,44,
10. 92, ,96,98,100