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].
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Question: [69, -90, -81, -41, -38, -41, 15, 55, 18, -24, 52, -55, 79, 84, -59]

Answer: [-10.5, -85.5, -61.0, -39.5, -39.5, -13.0, 35.0, 36.5, -3.0, 14.0, -1.5, 12.0, 81.5, 12.5]


Question: [55, -46, 64, -40]

Answer: [4.5, 9.0, 12.0]


Question: [97, -36, 34, -41, -5, 39, 82, 81]

Answer:
[30.5, -1.0, -3.5, -23.0, 17.0, 60.5, 81.5]