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: [87, 0, -6, 78, 26]

SOLUTION: [43.5, -3.0, 36.0, 52.0]

PROBLEM: [23, -1, 90, 56, -44]

SOLUTION: [11.0, 44.5, 73.0, 6.0]

PROBLEM: [-85, 45, -55, 89, -9]

SOLUTION:
[-20.0, -5.0, 17.0, 40.0]