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: [-71, -50, 89, 64, -54, 29, 65, -13, -13, -58]

SOLUTION: [-60.5, 19.5, 76.5, 5.0, -12.5, 47.0, 26.0, -13.0, -35.5]

PROBLEM: [-88, 35, 91, 54, -25]

SOLUTION: [-26.5, 63.0, 72.5, 14.5]

PROBLEM: [-77, 59, -1, 64, -41, -83, 36, -46, -87, -77, 19, 60, 18, -15, 62]

SOLUTION:
[-9.0, 29.0, 31.5, 11.5, -62.0, -23.5, -5.0, -66.5, -82.0, -29.0, 39.5, 39.0, 1.5, 23.5]