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


question:
[17, -31, 89, -43, 58, -50, 2, -61]
answer:
[-7.0, 29.0, 23.0, 7.5, 4.0, -24.0, -29.5]


question:
[-54, -4]
answer:

[-29.0]