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:
[55, -46, 64, -40]
answer:
[4.5, 9.0, 12.0]


question:
[38, 58, 14, -58, 77, -41]
answer:
[48.0, 36.0, -22.0, 9.5, 18.0]


question:
[21, -13]
answer:

[4.0]