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].

[8, -8, 26, -88, 71, -9, -10, -93, -91, -72, -12]
[0.0, 9.0, -31.0, -8.5, 31.0, -9.5, -51.5, -92.0, -81.5, -42.0]

[72, -80]
[-4.0]

[-31, 62, 87, 39, 68, 2, 66, 26, 84]

[15.5, 74.5, 63.0, 53.5, 35.0, 34.0, 46.0, 55.0]