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.
[[6, -92, -4, 100, -33, -159, 14], [-145, 43, -10], [-160, 68, -121, 9, -159, 63, 20], [-21, -164, -4, -192, 88], [-16, 39, 33, 86]]