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]: [57, 81, -99]
[EX A]: [69.0, -9.0]

[EX Q]: [-84, 6, -57, -27, 56, -84, -35, -93, 88, 54, 22, -34, 45]
[EX A]: [-39.0, -25.5, -42.0, 14.5, -14.0, -59.5, -64.0, -2.5, 71.0, 38.0, -6.0, 5.5]

[EX Q]: [-86, -17, 33, 10, -65, 26, 39, 0, 13, -53, 15, 39, 40, -59]
[EX A]:
[-51.5, 8.0, 21.5, -27.5, -19.5, 32.5, 19.5, 6.5, -20.0, -19.0, 27.0, 39.5, -9.5]