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]: [-74, -2]
[EX A]: [-38.0]

[EX Q]: [-96, 58, -84, -38, 62, 47, 77, -64, 97, 42, 55, 83, -69]
[EX A]: [-19.0, -13.0, -61.0, 12.0, 54.5, 62.0, 6.5, 16.5, 69.5, 48.5, 69.0, 7.0]

[EX Q]: [-39, 78, -96, 54]
[EX A]:
[19.5, -9.0, -21.0]