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: [31, -62, 49, -13, -30, -59, 76, 31, 40, -31, -56, -36]

SOLUTION: [-15.5, -6.5, 18.0, -21.5, -44.5, 8.5, 53.5, 35.5, 4.5, -43.5, -46.0]

PROBLEM: [-30, -31, 75, 43, 12, -78, 39, 74, 69, -92, -23, -22]

SOLUTION: [-30.5, 22.0, 59.0, 27.5, -33.0, -19.5, 56.5, 71.5, -11.5, -57.5, -22.5]

PROBLEM: [-53, -15, -13, -32, -10, 29, -37, -65, 8]

SOLUTION:
[-34.0, -14.0, -22.5, -21.0, 9.5, -4.0, -51.0, -28.5]