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: [-71, -61, -75, 65, -16, -56, 58, -39, 19, 55, -66, -24]
Example Output: [-66.0, -68.0, -5.0, 24.5, -36.0, 1.0, 9.5, -10.0, 37.0, -5.5, -45.0]

Example Input: [6, -40, -89, 64, -71, 70, 3, -56, 10, 51, 25, 68, -17]
Example Output:
[-17.0, -64.5, -12.5, -3.5, -0.5, 36.5, -26.5, -23.0, 30.5, 38.0, 46.5, 25.5]