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: [12, -25, -52]

SOLUTION: [-6.5, -38.5]

PROBLEM: [-43, -18, 79, -62, -93, 23, -48, 21, 44, 67, 82]

SOLUTION: [-30.5, 30.5, 8.5, -77.5, -35.0, -12.5, -13.5, 32.5, 55.5, 74.5]

PROBLEM: [84, -46, -36, 88, 87, -45, 99, -41, -68]

SOLUTION:
[19.0, -41.0, 26.0, 87.5, 21.0, 27.0, 29.0, -54.5]