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].

[14, -42]
[-14.0]

[40, -60, 97, -26, 39, -5]
[-10.0, 18.5, 35.5, 6.5, 17.0]

[20, 96, 51, 80]

[58.0, 73.5, 65.5]