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].

[43, -57]
[-7.0]

[-25, 42, -59, 3, 93]
[8.5, -8.5, -28.0, 48.0]

[-55, -30, 33]

[-42.5, 1.5]