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: [-37, 76, -35, 6, -72, 89, -100, -9, -81, 73, 90, -20]

Answer: [19.5, 20.5, -14.5, -33.0, 8.5, -5.5, -54.5, -45.0, -4.0, 81.5, 35.0]


Question: [-29, -56, -77, -51, 5, -12, -80]

Answer: [-42.5, -66.5, -64.0, -23.0, -3.5, -46.0]


Question: [90, 48, -77, 35, -25, -13, 70, -26, -2, 25, -30]

Answer:
[69.0, -14.5, -21.0, 5.0, -19.0, 28.5, 22.0, -14.0, 11.5, -2.5]