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:
[52, -7, -11, 69]
answer:
[22.5, -9.0, 29.0]


question:
[-56, 30, -70]
answer:
[-13.0, -20.0]


question:
[-20, 7, -84, 5, -90, -23, -76, -64, 56, -97, 22, 50]
answer:

[-6.5, -38.5, -39.5, -42.5, -56.5, -49.5, -70.0, -4.0, -20.5, -37.5, 36.0]