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].

[20, 75, 10, 74, -35, 64, -2]
[47.5, 42.5, 42.0, 19.5, 14.5, 31.0]

[-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]

[97, -34, -29, -77]

[31.5, -31.5, -53.0]