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: [-16, 54, 42]

Answer: [19.0, 48.0]


Question: [6, 81, 44, 22]

Answer: [43.5, 62.5, 33.0]


Question: [-54, 3, -5, 86, -49, 20, -42]

Answer:
[-25.5, -1.0, 40.5, 18.5, -14.5, -11.0]