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: [40, -60, 97, -26, 39, -5]

SOLUTION: [-10.0, 18.5, 35.5, 6.5, 17.0]

PROBLEM: [-2, 93, -84, 26, -87, -36, 82, 88, 64, -54, -23, -70, 16, -58, -94]

SOLUTION: [45.5, 4.5, -29.0, -30.5, -61.5, 23.0, 85.0, 76.0, 5.0, -38.5, -46.5, -27.0, -21.0, -76.0]

PROBLEM: [56, -86, -42, -52, 80, 63, 99, -26, -86]

SOLUTION:
[-15.0, -64.0, -47.0, 14.0, 71.5, 81.0, 36.5, -56.0]