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, -57, 85, -7, 81, 57, -60, -87, -18]
[-29.5, 14.0, 39.0, 37.0, 69.0, -1.5, -73.5, -52.5]

[-84, -94, 9, 35, 85, -69, -84, 86, -11, 44]
[-89.0, -42.5, 22.0, 60.0, 8.0, -76.5, 1.0, 37.5, 16.5]

[65, 61, -66, -66, -54, 55, 45, -89]

[63.0, -2.5, -66.0, -60.0, 0.5, 50.0, -22.0]