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, 27, 49]
[32.5, 38.0]

[-32, 19, 54, -51]
[-6.5, 36.5, 1.5]

[-87, -38, -89, 18]

[-62.5, -63.5, -35.5]