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].

[-61, -4, 59, 97, 77, 15, 50, -66, 99, 90, -77, 53]
[-32.5, 27.5, 78.0, 87.0, 46.0, 32.5, -8.0, 16.5, 94.5, 6.5, -12.0]

[27, -75, 71, -18, -67, -62, 95, 3, 10]
[-24.0, -2.0, 26.5, -42.5, -64.5, 16.5, 49.0, 6.5]

[74, -19, -65, 84, 35, 77, 75, -85]

[27.5, -42.0, 9.5, 59.5, 56.0, 76.0, -5.0]