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].

[-16, 54, 42]
[19.0, 48.0]

[-42, 68, -97, 81, 6, 30, 71, 61, -73]
[13.0, -14.5, -8.0, 43.5, 18.0, 50.5, 66.0, -6.0]

[84, 46, 6, -27, 90, -23, 25, -8, 18, 72, 39, -38, 83]

[65.0, 26.0, -10.5, 31.5, 33.5, 1.0, 8.5, 5.0, 45.0, 55.5, 0.5, 22.5]