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: [-76, -63, 15, 34, 34, 62, 23, -67, -17, 84, -47]

SOLUTION: [-69.5, -24.0, 24.5, 34.0, 48.0, 42.5, -22.0, -42.0, 33.5, 18.5]

PROBLEM: [-100, 41, -68, -31, -71, -40, 77]

SOLUTION: [-29.5, -13.5, -49.5, -51.0, -55.5, 18.5]

PROBLEM: [-12, 24, -50, 53, -47, 88, 69, 61, 59, -67, -90, -41, 38, 95]

SOLUTION:
[6.0, -13.0, 1.5, 3.0, 20.5, 78.5, 65.0, 60.0, -4.0, -78.5, -65.5, -1.5, 66.5]