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: [-21, 12, 53, 49, 2, -54, -28, 8, -77, 27, -33]
Example Output: [-4.5, 32.5, 51.0, 25.5, -26.0, -41.0, -10.0, -34.5, -25.0, -3.0]

Example Input: [93, -20, -64, -4, -73, 78, -84, 84, -87]
Example Output: [36.5, -42.0, -34.0, -38.5, 2.5, -3.0, 0.0, -1.5]

Example Input: [-1, -54, 53, 1, -55, 20, 88, -12, -82]
Example Output:
[-27.5, -0.5, 27.0, -27.0, -17.5, 54.0, 38.0, -47.0]