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: [42, -57, 62, 14, -89, 19, 56, -90, 32, 21, -2, -9]
Example Output: [-7.5, 2.5, 38.0, -37.5, -35.0, 37.5, -17.0, -29.0, 26.5, 9.5, -5.5]

Example Input: [-50, 66, -98, -47, -11]
Example Output: [8.0, -16.0, -72.5, -29.0]

Example Input: [-62, 89]
Example Output:
[13.5]