In each question, supply the number to complete the sequence.
1)
1, 3, 5, 7, 9, 11, ?
11
13
10
12
2)
1, 2, 4, 7, ?, 16
3)
0, 5, 1, 4, 2, ?
6
2
3
-1
4)
81, 78, 72, ?, 36, -12
60
54
18
58
5)
5, 11, 17, 23, 31, ?
43
37
41
39