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: [84, -12, 27, 10, 23, -64, -8, 23, 3, -90, 87, 4, -74]

Answer: [36.0, 7.5, 18.5, 16.5, -20.5, -36.0, 7.5, 13.0, -43.5, -1.5, 45.5, -35.0]


Question: [-18, 63, 49, 17, 1]

Answer: [22.5, 56.0, 33.0, 9.0]


Question: [85, -63, 73, 24, -23, 60, 60]

Answer:
[11.0, 5.0, 48.5, 0.5, 18.5, 60.0]