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: [-56, 32, -54]

SOLUTION: [-12.0, -11.0]

PROBLEM: [-71, -78, -84, 6, 99, 66, -90, -36, -77, -56, 19, -59, 71]

SOLUTION: [-74.5, -81.0, -39.0, 52.5, 82.5, -12.0, -63.0, -56.5, -66.5, -18.5, -20.0, 6.0]

PROBLEM: [-72, 22, -14, 68, -16, -94, 52, -33, -1, 2, 58]

SOLUTION:
[-25.0, 4.0, 27.0, 26.0, -55.0, -21.0, 9.5, -17.0, 0.5, 30.0]