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: [91, 3, -59, 63]

A: [47.0, -28.0, 2.0]
****
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: [36, -57]

A:
[-10.5]
****