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: [31, 33, 27, 25]

SOLUTION: [32.0, 30.0, 26.0]

PROBLEM: [68, -24, 24]

SOLUTION: [22.0, 0.0]

PROBLEM: [-3, 13, -46, -3, 23, 89, 48, -77, 74, -14, 96, 43, 2]

SOLUTION:
[5.0, -16.5, -24.5, 10.0, 56.0, 68.5, -14.5, -1.5, 30.0, 41.0, 69.5, 22.5]

