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]: [87, 0, -6, 78, 26]
[EX A]: [43.5, -3.0, 36.0, 52.0]

[EX Q]: [29, -54, 81, -85, 51, -12, -11, -68, 38, 83, 46]
[EX A]: [-12.5, 13.5, -2.0, -17.0, 19.5, -11.5, -39.5, -15.0, 60.5, 64.5]

[EX Q]: [-77, 76, 21, 100, 19]
[EX A]:
[-0.5, 48.5, 60.5, 59.5]