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:
[-99, 43, 6, 55, 74, -46, 24, -6, -51, 47, 32]
answer:
[-28.0, 24.5, 30.5, 64.5, 14.0, -11.0, 9.0, -28.5, -2.0, 39.5]


question:
[-64, -46, 21, -97, -86]
answer:
[-55.0, -12.5, -38.0, -91.5]


question:
[-85, 27, 5, -21, 7]
answer:

[-29.0, 16.0, -8.0, -7.0]