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].

[65, 82, -67, -51]
[73.5, 7.5, -59.0]

[-21, 12, 53, 49, 2, -54, -28, 8, -77, 27, -33]
[-4.5, 32.5, 51.0, 25.5, -26.0, -41.0, -10.0, -34.5, -25.0, -3.0]

[56, -12, 74, -36, 11, -89, -25, 22, -71, -12, -60, -75]

[22.0, 31.0, 19.0, -12.5, -39.0, -57.0, -1.5, -24.5, -41.5, -36.0, -67.5]