TASK DEFINITION: In this task you are given a list of numbers and you need to find the average of each two consecutive values. The average of two numbers a and b is calculated as: (a + b) /2. The output should be a list of the averages of each two consecutive values. A list is presented with two brackets and comma-separated values, like: [1,2,3].
PROBLEM: [58, -5, 43, -83, -62, 51, -90, 29, -13]

SOLUTION: [26.5, 19.0, -20.0, -72.5, -5.5, -19.5, -30.5, 8.0]

PROBLEM: [94, 49, -16, 80, 1, -93]

SOLUTION: [71.5, 16.5, 32.0, 40.5, -46.0]

PROBLEM: [-9, -89, 15, 39, -53]

SOLUTION:
[-49.0, -37.0, 27.0, -7.0]