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: [-21, 92, -76, 59, 41, -99, -5, 35, 92, 66, -50]
Example Output: [35.5, 8.0, -8.5, 50.0, -29.0, -52.0, 15.0, 63.5, 79.0, 8.0]

Example Input: [-27, -64]
Example Output: [-45.5]

Example Input: [47, -19, 57, -38, 27, 10, 63, -60, -88, -53, -71, 58]
Example Output:
[14.0, 19.0, 9.5, -5.5, 18.5, 36.5, 1.5, -74.0, -70.5, -62.0, -6.5]