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: [-19, 17, -76, 38, 49, -1, 98, -89, -27, 49, 6, 44, 81, 0, 80]

SOLUTION: [-1.0, -29.5, -19.0, 43.5, 24.0, 48.5, 4.5, -58.0, 11.0, 27.5, 25.0, 62.5, 40.5, 40.0]

PROBLEM: [0, 33, 64, 75, 53, -8]

SOLUTION:
[16.5, 48.5, 69.5, 64.0, 22.5]