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: [-51, 1, -77, -80, 33, -42, 41, 86, -18, 58]

Answer: [-25.0, -38.0, -78.5, -23.5, -4.5, -0.5, 63.5, 34.0, 20.0]


Question: [-32, -39, -13]

Answer: [-35.5, -26.0]


Question: [-82, 53, -35, 78, 40, -83, 46, -17]

Answer:
[-14.5, 9.0, 21.5, 59.0, -21.5, -18.5, 14.5]