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: [40, 34, -39]

A: [37.0, -2.5]
****
Q: [-64, 95]

A: [15.5]
****
Q: [-8, 63]

A:
[27.5]
****