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: [-60, -90, 0, -81, 8]

SOLUTION: [-75.0, -45.0, -40.5, -36.5]

PROBLEM: [-67, -96, -7, 11]

SOLUTION: [-81.5, -51.5, 2.0]

PROBLEM: [-83, 35, 74, -77, -32, 67, 98, -18, 73]

SOLUTION:
[-24.0, 54.5, -1.5, -54.5, 17.5, 82.5, 40.0, 27.5]