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: [42, 42, 0, -99, -11, 17, -42, -72]

SOLUTION: [42.0, 21.0, -49.5, -55.0, 3.0, -12.5, -57.0]

PROBLEM: [16, 96, -27, -13, -86, -98, -68, 27, 66, 95, -26, -34, -94]

SOLUTION: [56.0, 34.5, -20.0, -49.5, -92.0, -83.0, -20.5, 46.5, 80.5, 34.5, -30.0, -64.0]

PROBLEM: [-6, 91, -68, -35, -14, 21]

SOLUTION:
[42.5, 11.5, -51.5, -24.5, 3.5]