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].
--------
Question: [1, -27, 100, -100, -52, -57, 25, -14, -46, 81]

Answer: [-13.0, 36.5, 0.0, -76.0, -54.5, -16.0, 5.5, -30.0, 17.5]


Question: [-39, 16, -88, -73, 52, -75, -23, -37, 21]

Answer: [-11.5, -36.0, -80.5, -10.5, -11.5, -49.0, -30.0, -8.0]


Question: [-1, -23, -12]

Answer:
[-12.0, -17.5]