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: [78, 3, 3, 50, 80, -76, -73, -20, -71, -29, -47, 4]

Answer: [40.5, 3.0, 26.5, 65.0, 2.0, -74.5, -46.5, -45.5, -50.0, -38.0, -21.5]


Question: [-21, 13, 42, 12, 48, 35, -98, -25, -7, 21, 35, -24, -45]

Answer: [-4.0, 27.5, 27.0, 30.0, 41.5, -31.5, -61.5, -16.0, 7.0, 28.0, 5.5, -34.5]


Question: [-16, -85, 60, 22, 58, 3]

Answer:
[-50.5, -12.5, 41.0, 40.0, 30.5]