In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[-144, -156, -164, -25, -72, -98, 10], [-128, -107, -58], [-36, -41, -113], [-117, -97], [91, 89], [-111, -144, -130, -125, -75], [-20, 63, -189, -113]]