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].

[Q]: [-89, 83, 0, -53]
[A]: [-3.0, 41.5, -26.5]


[Q]: [-81, -11, -100, 66, 29, 28, 31, -36]
[A]: [-46.0, -55.5, -17.0, 47.5, 28.5, 29.5, -2.5]


[Q]: [28, -49, 72, -68, 99, 46, 57, 14, -28, -84, 25]
[A]:
[-10.5, 11.5, 2.0, 15.5, 72.5, 51.5, 35.5, -7.0, -56.0, -29.5]