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: [-74, -74, 64, -88, 59, 99, 27, -18, -49]

SOLUTION: [-74.0, -5.0, -12.0, -14.5, 79.0, 63.0, 4.5, -33.5]

PROBLEM: [-72, 43, 78, -30, 53]

SOLUTION: [-14.5, 60.5, 24.0, 11.5]

PROBLEM: [31, 33, 27, 25]

SOLUTION:
[32.0, 30.0, 26.0]