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].

[7, -10, -55, 26, -43, 13, 16, -100, 57, 71, 98, -89, 35]
[-1.5, -32.5, -14.5, -8.5, -15.0, 14.5, -42.0, -21.5, 64.0, 84.5, 4.5, -27.0]

[-70, -94]
[-82.0]

[-92, -9, -9, -73, 15, 65, 21]

[-50.5, -9.0, -41.0, -29.0, 40.0, 43.0]