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]: [40, -60, 97, -26, 39, -5]
[A]: [-10.0, 18.5, 35.5, 6.5, 17.0]


[Q]: [0, -19, -44, 90, -50, 22, 23, -79, -37, 9, -3]
[A]: [-9.5, -31.5, 23.0, 20.0, -14.0, 22.5, -28.0, -58.0, -14.0, 3.0]


[Q]: [86, 40, 2, 74, 97]
[A]:
[63.0, 21.0, 38.0, 85.5]