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:
[75, 87, -2, 42, -20, -50, 51]
answer:
[81.0, 42.5, 20.0, 11.0, -35.0, 0.5]


question:
[-67, -78, -72, 9, -90, 64, 13, -2, -61, 45, 36, -7, -25, 68]
answer:
[-72.5, -75.0, -31.5, -40.5, -13.0, 38.5, 5.5, -31.5, -8.0, 40.5, 14.5, -16.0, 21.5]


question:
[-15, 62, -90]
answer:

[23.5, -14.0]


