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].

[38, -15, -76]
[11.5, -45.5]

[-19, 65, -60, 12, 46, -65, -10]
[23.0, 2.5, -24.0, 29.0, -9.5, -37.5]

[59, -5, 65, -80, 98]

[27.0, 30.0, -7.5, 9.0]