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:
[40, -65, -77]
answer:
[-12.5, -71.0]


question:
[28, -83, -37, -51]
answer:
[-27.5, -60.0, -44.0]


question:
[-27, -36, 53]
answer:

[-31.5, 8.5]