instruction:
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:
[-68, -9, -91, -69, -63, -48, -52, -57, -56, -85, 75, -19]
answer:
[-38.5, -50.0, -80.0, -66.0, -55.5, -50.0, -54.5, -56.5, -70.5, -5.0, 28.0]


question:
[-90, 40, 90]
answer:
[-25.0, 65.0]


question:
[-10, -54, 68, -52, 22, 22, 72, -13, 12, 3, 79, 35, 21, 88, 7]
answer:

[-32.0, 7.0, 8.0, -15.0, 22.0, 47.0, 29.5, -0.5, 7.5, 41.0, 57.0, 28.0, 54.5, 47.5]