instruction:
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].
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:
[-13, 68, 35, -12, 21, -100, 20, -33, -92, 21, 20, -33, 48, -71]
answer:
[27.5, 51.5, 11.5, 4.5, -39.5, -40.0, -6.5, -62.5, -35.5, 20.5, -6.5, 7.5, -11.5]


question:
[77, 17, 43, 68, -75, -58, -45, 35, 54, 94, 91, -59, 11, -38, 71]
answer:

[47.0, 30.0, 55.5, -3.5, -66.5, -51.5, -5.0, 44.5, 74.0, 92.5, 16.0, -24.0, -13.5, 16.5]