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]: [75, 67, 18, -15, -51, -80, -73]
[EX A]: [71.0, 42.5, 1.5, -33.0, -65.5, -76.5]

[EX Q]: [-67, -96, -7, 11]
[EX A]: [-81.5, -51.5, 2.0]

[EX Q]: [-36, 31]
[EX A]:
[-2.5]