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].

[-54, -41, 62, -97, 75, 85, -38, -11, 99, -77, 36]
[-47.5, 10.5, -17.5, -11.0, 80.0, 23.5, -24.5, 44.0, 11.0, -20.5]

[-20, -22, -38, 68, 32, -96, 79, 4, -39, -49]
[-21.0, -30.0, 15.0, 50.0, -32.0, -8.5, 41.5, -17.5, -44.0]

[28, -64]

[-18.0]