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].

[33, 66, 9, -63, -67, 30, -47, -2, -26, -91]
[49.5, 37.5, -27.0, -65.0, -18.5, -8.5, -24.5, -14.0, -58.5]

[-74, -2]
[-38.0]

[-54, -76, 11, -39, 89, -69, 3, 83]

[-65.0, -32.5, -14.0, 25.0, 10.0, -33.0, 43.0]