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: [-34, 86, -55, 55, 97, 30, 27, -60, -25, 54, -4]

Answer: [26.0, 15.5, 0.0, 76.0, 63.5, 28.5, -16.5, -42.5, 14.5, 25.0]


Question: [-76, -3, -6, -74, 70, -26]

Answer: [-39.5, -4.5, -40.0, -2.0, 22.0]


Question: [-17, 4, -81, 86, -90, -42, 4, 95, 14]

Answer:
[-6.5, -38.5, 2.5, -2.0, -66.0, -19.0, 49.5, 54.5]