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: [-22, -85]

A: [-53.5]
****
Q: [-15, 5]

A: [-5.0]
****
Q: [79, -28, 87, 42]

A:
[25.5, 29.5, 64.5]
****