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: [31, -43]

SOLUTION: [-6.0]

PROBLEM: [-27, -76, 16, 92, 73, -80, -56]

SOLUTION: [-51.5, -30.0, 54.0, 82.5, -3.5, -68.0]

PROBLEM: [-19, 3, -82, 68, -38, 19, -48, -86]

SOLUTION:
[-8.0, -39.5, -7.0, 15.0, -9.5, -14.5, -67.0]