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: [-9, 97, -37]

SOLUTION: [44.0, 30.0]

PROBLEM: [-1, 75, -1, -37, -38, -10, 70, -75, -98, 39, 37, -15, 60]

SOLUTION: [37.0, 37.0, -19.0, -37.5, -24.0, 30.0, -2.5, -86.5, -29.5, 38.0, 11.0, 22.5]

PROBLEM: [74, -67, 28, 48, 8, -40, 60, 25, 55, -34, 96, -36]

SOLUTION:
[3.5, -19.5, 38.0, 28.0, -16.0, 10.0, 42.5, 40.0, 10.5, 31.0, 30.0]