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: [-37, 89]

SOLUTION: [26.0]

PROBLEM: [53, 7, 83, -99]

SOLUTION: [30.0, 45.0, -8.0]

PROBLEM: [50, 18, -45, 56, -48, 21, -36, -78]

SOLUTION:
[34.0, -13.5, 5.5, 4.0, -13.5, -7.5, -57.0]