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: [59, -64, -32, 17, -11, 56, 91, -44, 86, -59, -3, -8, 62, -66, 1]

SOLUTION: [-2.5, -48.0, -7.5, 3.0, 22.5, 73.5, 23.5, 21.0, 13.5, -31.0, -5.5, 27.0, -2.0, -32.5]

PROBLEM: [13, -16, 74, -48, 53, 39, -49]

SOLUTION: [-1.5, 29.0, 13.0, 2.5, 46.0, -5.0]

PROBLEM: [-66, -40, -72, 93, 75, 85, 8, 91, -55]

SOLUTION:
[-53.0, -56.0, 10.5, 84.0, 80.0, 46.5, 49.5, 18.0]