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]: [-18, 63, 49, 17, 1]
[EX A]: [22.5, 56.0, 33.0, 9.0]

[EX Q]: [20, 75, 10, 74, -35, 64, -2]
[EX A]: [47.5, 42.5, 42.0, 19.5, 14.5, 31.0]

[EX Q]: [35, -90, 86, 38, -86, 3, -9, 28]
[EX A]:
[-27.5, -2.0, 62.0, -24.0, -41.5, -3.0, 9.5]