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].

Q: [-27, -64]

A: [-45.5]
****
Q: [29, -54, 81, -85, 51, -12, -11, -68, 38, 83, 46]

A: [-12.5, 13.5, -2.0, -17.0, 19.5, -11.5, -39.5, -15.0, 60.5, 64.5]
****
Q: [76, 99, -27]

A:
[87.5, 36.0]
****