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]: [-80, 99, -49, -90, 63, 15, 39, -5, -17]
[EX A]: [9.5, 25.0, -69.5, -13.5, 39.0, 27.0, 17.0, -11.0]

[EX Q]: [-19, 70, -70, -72, 67, 39, -45, -57, -75]
[EX A]: [25.5, 0.0, -71.0, -2.5, 53.0, -3.0, -51.0, -66.0]

[EX Q]: [-69, -76, -98, -72, 6, -95, -34, 44, -90, 96]
[EX A]:
[-72.5, -87.0, -85.0, -33.0, -44.5, -64.5, 5.0, -23.0, 3.0]