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: [-12, -11, -13, 37, 73, -7, -15, 62, 1, 5, 93, -30, 21, 29, 99]

Answer: [-11.5, -12.0, 12.0, 55.0, 33.0, -11.0, 23.5, 31.5, 3.0, 49.0, 31.5, -4.5, 25.0, 64.0]


Question: [-19, 3, -82, 68, -38, 19, -48, -86]

Answer: [-8.0, -39.5, -7.0, 15.0, -9.5, -14.5, -67.0]


Question: [-63, 24, -13, 17, 72, 20, -6, 39, 60, -38, -14, 94]

Answer:
[-19.5, 5.5, 2.0, 44.5, 46.0, 7.0, 16.5, 49.5, 11.0, -26.0, 40.0]