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:
[86, -66, -60]
answer:
[10.0, -63.0]


question:
[-56, 32, -54]
answer:
[-12.0, -11.0]


question:
[-22, 17, -43, 31, 22, -17]
answer:

[-2.5, -13.0, -6.0, 26.5, 2.5]


