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]: [-56, 30, -70]
[EX A]: [-13.0, -20.0]

[EX Q]: [40, -60, 97, -26, 39, -5]
[EX A]: [-10.0, 18.5, 35.5, 6.5, 17.0]

[EX Q]: [-78, 37, -85, -12, 3, 21, 8, -11, -45]
[EX A]:
[-20.5, -24.0, -48.5, -4.5, 12.0, 14.5, -1.5, -28.0]