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]: [40, 34, -39]
[EX A]: [37.0, -2.5]

[EX Q]: [99, -28, -18, -89, -14, -80, -54, -84, -82]
[EX A]: [35.5, -23.0, -53.5, -51.5, -47.0, -67.0, -69.0, -83.0]

[EX Q]: [-31, 99, 38, -57, -99, 19, 25, -18, 77, -75, -97, -97]
[EX A]:
[34.0, 68.5, -9.5, -78.0, -40.0, 22.0, 3.5, 29.5, 1.0, -86.0, -97.0]