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].

[84, -86, 12, 56, 39, 30]
[-1.0, -37.0, 34.0, 47.5, 34.5]

[-2, 93, -84, 26, -87, -36, 82, 88, 64, -54, -23, -70, 16, -58, -94]
[45.5, 4.5, -29.0, -30.5, -61.5, 23.0, 85.0, 76.0, 5.0, -38.5, -46.5, -27.0, -21.0, -76.0]

[54, 49, 32, -55]

[51.5, 40.5, -11.5]