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].

[27, 32, -92]
[29.5, -30.0]

[83, -11, 38]
[36.0, 13.5]

[17, -31, 11, 29]

[-7.0, -10.0, 20.0]