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: [100, -88, 100, -71, -83, 24, 80, 12, 16]

SOLUTION: [6.0, 6.0, 14.5, -77.0, -29.5, 52.0, 46.0, 14.0]

PROBLEM: [58, 76, 12, -55, 74, 15, -81]

SOLUTION: [67.0, 44.0, -21.5, 9.5, 44.5, -33.0]

PROBLEM: [93, -91, 11, 77, -74, 40, -66, -22, -27, 28]

SOLUTION:
[1.0, -40.0, 44.0, 1.5, -17.0, -13.0, -44.0, -24.5, 0.5]