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: [-12, -2, 33, -26, 37, -82, -14, 56, -39, 57, 2]

SOLUTION: [-7.0, 15.5, 3.5, 5.5, -22.5, -48.0, 21.0, 8.5, 9.0, 29.5]

PROBLEM: [-93, 99, -27, -69, -48]

SOLUTION: [3.0, 36.0, -48.0, -58.5]

PROBLEM: [40, -42, -30]

SOLUTION:
[-1.0, -36.0]