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, -65, -77]

A: [-12.5, -71.0]
****
Q: [65, 82, -67, -51]

A: [73.5, 7.5, -59.0]
****
Q: [67, 94, 6, -11, 41, 22, 10, -73, 84]

A:
[80.5, 50.0, -2.5, 15.0, 31.5, 16.0, -31.5, 5.5]
****