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: [-53, -56, -45, -28, -18, 57, -43, 80, 49, -74, 25]

Answer: [-54.5, -50.5, -36.5, -23.0, 19.5, 7.0, 18.5, 64.5, -12.5, -24.5]


Question: [53, 13, 15]

Answer: [33.0, 14.0]


Question: [81, 16, 42, -46, 0, -52, -32, -29]

Answer:
[48.5, 29.0, -2.0, -23.0, -26.0, -42.0, -30.5]