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: [-55, -71, -30, -22]

A: [-63.0, -50.5, -26.0]
****
Q: [-15, 5]

A: [-5.0]
****
Q: [67, 49, -46, 77, -100, 48, -24]

A:
[58.0, 1.5, 15.5, -11.5, -26.0, 12.0]
****