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: [-57, -27, -20, 4, -82, 58, -39, 92, 64, -68, -21]

A: [-42.0, -23.5, -8.0, -39.0, -12.0, 9.5, 26.5, 78.0, -2.0, -44.5]
****
Q: [40, 34, -39]

A: [37.0, -2.5]
****
Q: [-38, -47, 26, 62]

A:
[-42.5, -10.5, 44.0]
****