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].

[-72, 72, -34, 49, -10, 60, -21, -14]
[0.0, 19.0, 7.5, 19.5, 25.0, 19.5, -17.5]

[-81, 99, -79, 70, 91]
[9.0, 10.0, -4.5, 80.5]

[75, 67, 18, -15, -51, -80, -73]

[71.0, 42.5, 1.5, -33.0, -65.5, -76.5]