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].

[-2, 54, 35, -67]
[26.0, 44.5, -16.0]

[60, -8, 34, 3, -31, -83, 13, 23, -6, 64]
[26.0, 13.0, 18.5, -14.0, -57.0, -35.0, 18.0, 8.5, 29.0]

[-51, -60, -83]

[-55.5, -71.5]