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].

[-51, -25, -51, 46, -78, 9, -14, -14, -25, 79, 56, -5]
[-38.0, -38.0, -2.5, -16.0, -34.5, -2.5, -14.0, -19.5, 27.0, 67.5, 25.5]

[20, -17, 41, -60, 2, 64, 36, 16, -43]
[1.5, 12.0, -9.5, -29.0, 33.0, 50.0, 26.0, -13.5]

[13, -91, -16, -89, -9, 75, 8, 72, 76, -82, -73]

[-39.0, -53.5, -52.5, -49.0, 33.0, 41.5, 40.0, 74.0, -3.0, -77.5]