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: [55, -46, 64, -40]

SOLUTION: [4.5, 9.0, 12.0]

PROBLEM: [-83, -21, -49, -92, 75]

SOLUTION: [-52.0, -35.0, -70.5, -8.5]

PROBLEM: [5, 33, 89]

SOLUTION:
[19.0, 61.0]