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].

[-74, -74, 64, -88, 59, 99, 27, -18, -49]
[-74.0, -5.0, -12.0, -14.5, 79.0, 63.0, 4.5, -33.5]

[-69, -76, -98, -72, 6, -95, -34, 44, -90, 96]
[-72.5, -87.0, -85.0, -33.0, -44.5, -64.5, 5.0, -23.0, 3.0]

[-58, 66, -58, 4, -59, -47, -76, -2, -78, 68]

[4.0, 4.0, -27.0, -27.5, -53.0, -61.5, -39.0, -40.0, -5.0]