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].

[82, -37, 81]
[22.5, 22.0]

[60, 88]
[74.0]

[19, 8]

[13.5]