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].

[-81, -5, -18, -96, 28, -86, 50, 63, 80, -52]
[-43.0, -11.5, -57.0, -34.0, -29.0, -18.0, 56.5, 71.5, 14.0]

[-64, -46, 21, -97, -86]
[-55.0, -12.5, -38.0, -91.5]

[-97, -99, 82, -19, -63, 7, -68]

[-98.0, -8.5, 31.5, -41.0, -28.0, -30.5]