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: [-13, 31, 0, 53]

Answer: [9.0, 15.5, 26.5]


Question: [-56, 32, -54]

Answer: [-12.0, -11.0]


Question: [-27, 83, -67, 51, -57, -18, -59, 85, -84, 68, 16, 61]

Answer:
[28.0, 8.0, -8.0, -3.0, -37.5, -38.5, 13.0, 0.5, -8.0, 42.0, 38.5]