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]: [-100, 68, -69, 30]
[EX A]: [-16.0, -0.5, -19.5]

[EX Q]: [-15, 5]
[EX A]: [-5.0]

[EX Q]: [17, -81, -44]
[EX A]:
[-32.0, -62.5]