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: [-96, 58, -84, -38, 62, 47, 77, -64, 97, 42, 55, 83, -69]

SOLUTION: [-19.0, -13.0, -61.0, 12.0, 54.5, 62.0, 6.5, 16.5, 69.5, 48.5, 69.0, 7.0]

PROBLEM: [-84, -94, 9, 35, 85, -69, -84, 86, -11, 44]

SOLUTION: [-89.0, -42.5, 22.0, 60.0, 8.0, -76.5, 1.0, 37.5, 16.5]

PROBLEM: [-56, 91, -76, -94, 97, -6, -49, 31]

SOLUTION:
[17.5, 7.5, -85.0, 1.5, 45.5, -27.5, -9.0]