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].

[67, 45, 59, -50, -28, -70, -84, 69, 72, 53]
[56.0, 52.0, 4.5, -39.0, -49.0, -77.0, -7.5, 70.5, 62.5]

[55, -46, 64, -40]
[4.5, 9.0, 12.0]

[26, -59, 12, 53, -27, -92, -74, 19, -38, 99, -60, -46, -67]

[-16.5, -23.5, 32.5, 13.0, -59.5, -83.0, -27.5, -9.5, 30.5, 19.5, -53.0, -56.5]