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: [-10, 80, -47, 88, 17, 70, -21, 5]
Example Output: [35.0, 16.5, 20.5, 52.5, 43.5, 24.5, -8.0]

Example Input: [1, -85]
Example Output: [-42.0]

Example Input: [99, -100, 47, -86, 26, 1, -40, 61]
Example Output:
[-0.5, -26.5, -19.5, -30.0, 13.5, -19.5, 10.5]