Checking the differences:
11 - 5 = 6
12 - 11 = 1
16 - 12 = 4
21 - 16 = 5
26 - 21 = 5
32 - 26 = 6
Difference series: 6, 1, 4, 5, 5, 6, __, 7, 16
The missing number follows the pattern and should be 41.
41
Spot the error in the given sentence:
\(\underline{\text{He and the other}}\) \(\underline{\text{members of the group}} \underline{\text{spoke after}} \underline{\text{their final victory}}. \)