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: [61, -99, -96]

SOLUTION: [-19.0, -97.5]

PROBLEM: [-85, 41, -29, 47, -31, -38, 91, 82]

SOLUTION: [-22.0, 6.0, 9.0, 8.0, -34.5, 26.5, 86.5]

PROBLEM: [90, 25, -97, -88, -54, 57, -4, -41, -77, -27]

SOLUTION:
[57.5, -36.0, -92.5, -71.0, 1.5, 26.5, -22.5, -59.0, -52.0]