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: [85, 64]

SOLUTION: [74.5]

PROBLEM: [41, -16, -86, -96, -67, 28, -89]

SOLUTION: [12.5, -51.0, -91.0, -81.5, -19.5, -30.5]

PROBLEM: [-73, 32, -66, 43, -60]

SOLUTION:
[-20.5, -17.0, -11.5, -8.5]

