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: [-71, 91, 51, -78, -87, -87, 71]

SOLUTION: [10.0, 71.0, -13.5, -82.5, -87.0, -8.0]

PROBLEM: [-79, 58]

SOLUTION: [-10.5]

PROBLEM: [-92, -81, 23, -19, -14, -71, -95, -89, 49]

SOLUTION:
[-86.5, -29.0, 2.0, -16.5, -42.5, -83.0, -92.0, -20.0]