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]: [-71, -78, -84, 6, 99, 66, -90, -36, -77, -56, 19, -59, 71]
[EX A]: [-74.5, -81.0, -39.0, 52.5, 82.5, -12.0, -63.0, -56.5, -66.5, -18.5, -20.0, 6.0]

[EX Q]: [68, 45, 84, -67, 13, 49, 20, 80, -5, -20, 52]
[EX A]: [56.5, 64.5, 8.5, -27.0, 31.0, 34.5, 50.0, 37.5, -12.5, 16.0]

[EX Q]: [-6, -42, 84, 64]
[EX A]:
[-24.0, 21.0, 74.0]