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: [55, -46, 64, -40]
Example Output: [4.5, 9.0, 12.0]

Example Input: [9, 62, 4, -63, -50, 9, -19, -42, -20]
Example Output: [35.5, 33.0, -29.5, -56.5, -20.5, -5.0, -30.5, -31.0]

Example Input: [81, 78, -97, -79, -48, 84, -49]
Example Output:
[79.5, -9.5, -88.0, -63.5, 18.0, 17.5]