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: [-81, -11, -100, 66, 29, 28, 31, -36]

A: [-46.0, -55.5, -17.0, 47.5, 28.5, 29.5, -2.5]
****
Q: [-50, -74, 52, -21, 29, -11]

A: [-62.0, -11.0, 15.5, 4.0, 9.0]
****
Q: [64, -45]

A:
[9.5]
****