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: [68, 45, 84, -67, 13, 49, 20, 80, -5, -20, 52]

SOLUTION: [56.5, 64.5, 8.5, -27.0, 31.0, 34.5, 50.0, 37.5, -12.5, 16.0]

PROBLEM: [10, 70, 61, -80, 6, 39, -83, 31, -25]

SOLUTION: [40.0, 65.5, -9.5, -37.0, 22.5, -22.0, -26.0, 3.0]

PROBLEM: [-48, -81, 26, 48, -80, 12, -37, -86, 69, -71, -17, -25, -63, 96, 53]

SOLUTION:
[-64.5, -27.5, 37.0, -16.0, -34.0, -12.5, -61.5, -8.5, -1.0, -44.0, -21.0, -44.0, 16.5, 74.5]