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]: [24, 99, 39, -86]
[A]: [61.5, 69.0, -23.5]


[Q]: [-7, 40, 98, 92, -81, 78, -22, 21]
[A]: [16.5, 69.0, 95.0, 5.5, -1.5, 28.0, -0.5]


[Q]: [-46, -23, -34, -60, 92, 28, -89, 75, 24, 100, -19]
[A]:
[-34.5, -28.5, -47.0, 16.0, 60.0, -30.5, -7.0, 49.5, 62.0, 40.5]