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].

[EX Q]: [20, 17, 12, -4, 33, -71, 17, -43, 72, -53, 80]
[EX A]: [18.5, 14.5, 4.0, 14.5, -19.0, -27.0, -13.0, 14.5, 9.5, 13.5]

[EX Q]: [69, -90, -81, -41, -38, -41, 15, 55, 18, -24, 52, -55, 79, 84, -59]
[EX A]: [-10.5, -85.5, -61.0, -39.5, -39.5, -13.0, 35.0, 36.5, -3.0, 14.0, -1.5, 12.0, 81.5, 12.5]

[EX Q]: [18, -23, 66, -48, 2, -88, 65, 75]
[EX A]:
[-2.5, 21.5, 9.0, -23.0, -43.0, -11.5, 70.0]