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]: [-16, -7, -2, 3, 84, -53, 9, 30, -67, 44, -42, 99]
[EX A]: [-11.5, -4.5, 0.5, 43.5, 15.5, -22.0, 19.5, -18.5, -11.5, 1.0, 28.5]

[EX Q]: [-25, 29, 0, -66, -92, 11, -89, -35, 80, -69, 81, -69]
[EX A]: [2.0, 14.5, -33.0, -79.0, -40.5, -39.0, -62.0, 22.5, 5.5, 6.0, 6.0]

[EX Q]: [21, -21, -68]
[EX A]:
[0.0, -44.5]