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].

Example Input: [-23, 69, -75]
Example Output: [23.0, -3.0]

Example Input: [-12, -89]
Example Output: [-50.5]

Example Input: [-20, -36, -34, 58]
Example Output:
[-28.0, -35.0, 12.0]