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]: [-34, -43, 12]
[EX A]: [-38.5, -15.5]

[EX Q]: [43, -76, -45, -47, -8, 5, 51, -95, -58, 8, 89, 25]
[EX A]:
[-16.5, -60.5, -46.0, -27.5, -1.5, 28.0, -22.0, -76.5, -25.0, 48.5, 57.0]