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: [-8, 35, 28, -100]

SOLUTION: [13.5, 31.5, -36.0]

PROBLEM: [-77, -23, -23, -16, 96, -98, 84, 76, -15, -46, -7]

SOLUTION: [-50.0, -23.0, -19.5, 40.0, -1.0, -7.0, 80.0, 30.5, -30.5, -26.5]

PROBLEM: [-47, 41, -46, 47, 67]

SOLUTION:
[-3.0, -2.5, 0.5, 57.0]