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:
[-31, 39, -47]
answer:
[4.0, -4.0]


question:
[-13, 31, 0, 53]
answer:
[9.0, 15.5, 26.5]


question:
[25, 50]
answer:

[37.5]