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: [-91, 59, -52, 34, 5, 83, 49, -1, 27]
Example Output: [-16.0, 3.5, -9.0, 19.5, 44.0, 66.0, 24.0, 13.0]

Example Input: [97, -97, 10]
Example Output: [0.0, -43.5]

Example Input: [92, 56, 71, -64, 88, 61, 92, 53, -88, 74]
Example Output:
[74.0, 63.5, 3.5, 12.0, 74.5, 76.5, 72.5, -17.5, -7.0]