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: [-100, -100, -39, 13, 24, -2, 77, 37, -20, -38, 18, 55]
Example Output: [-100.0, -69.5, -13.0, 18.5, 11.0, 37.5, 57.0, 8.5, -29.0, -10.0, 36.5]

Example Input: [-71, 91, 51, -78, -87, -87, 71]
Example Output: [10.0, 71.0, -13.5, -82.5, -87.0, -8.0]

Example Input: [40, 71, -1, -56, -2, 41, 15, -55, -62, 64, 100]
Example Output:
[55.5, 35.0, -28.5, -29.0, 19.5, 28.0, -20.0, -58.5, 1.0, 82.0]