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:
[-26, -40, -22, -65, -61, 16, 26, 51, -24]
answer:
[-33.0, -31.0, -43.5, -63.0, -22.5, 21.0, 38.5, 13.5]


question:
[-29, -99, 93, 44, 8, -55, 48, 2, 22, 45]
answer:
[-64.0, -3.0, 68.5, 26.0, -23.5, -3.5, 25.0, 12.0, 33.5]


question:
[64, -29, 91]
answer:

[17.5, 31.0]