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].

[53, 13, 15]
[33.0, 14.0]

[-99, 61, 95]
[-19.0, 78.0]

[-51, -25, 79, 30, 34, 27, 80, 65, -47]

[-38.0, 27.0, 54.5, 32.0, 30.5, 53.5, 72.5, 9.0]