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].

[20, 75, 10, 74, -35, 64, -2]
[47.5, 42.5, 42.0, 19.5, 14.5, 31.0]

[-89, -9, -14, -28, 41, 44, 86, 40, 75, 30, -1, 86]
[-49.0, -11.5, -21.0, 6.5, 42.5, 65.0, 63.0, 57.5, 52.5, 14.5, 42.5]

[7, 9, -4, -55, -75, 43, -11, 20, 64, 71, -81, 59, -83, -55, 16]

[8.0, 2.5, -29.5, -65.0, -16.0, 16.0, 4.5, 42.0, 67.5, -5.0, -11.0, -12.0, -69.0, -19.5]