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: [57, -42, -14, -48, -62, 7, -9]

SOLUTION: [7.5, -28.0, -31.0, -55.0, -27.5, -1.0]

PROBLEM: [-27, -76, 16, 92, 73, -80, -56]

SOLUTION: [-51.5, -30.0, 54.0, 82.5, -3.5, -68.0]

PROBLEM: [75, -33, -18, -9, 67, 58, 100, -74, -80, 37]

SOLUTION:
[21.0, -25.5, -13.5, 29.0, 62.5, 79.0, 13.0, -77.0, -21.5]