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].

[-51, 1, -77, -80, 33, -42, 41, 86, -18, 58]
[-25.0, -38.0, -78.5, -23.5, -4.5, -0.5, 63.5, 34.0, 20.0]

[-1, 75, -1, -37, -38, -10, 70, -75, -98, 39, 37, -15, 60]
[37.0, 37.0, -19.0, -37.5, -24.0, 30.0, -2.5, -86.5, -29.5, 38.0, 11.0, 22.5]

[-96, 12]

[-42.0]