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: [-81, -5, -18, -96, 28, -86, 50, 63, 80, -52]

SOLUTION: [-43.0, -11.5, -57.0, -34.0, -29.0, -18.0, 56.5, 71.5, 14.0]

PROBLEM: [-70, -94]

SOLUTION: [-82.0]

PROBLEM: [-51, -99, -73, 34, 98, -10, 49, -62, -91, -33, -30, 86]

SOLUTION:
[-75.0, -86.0, -19.5, 66.0, 44.0, 19.5, -6.5, -76.5, -62.0, -31.5, 28.0]