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].

[97, -97, 10]
[0.0, -43.5]

[16, 35, 54, -67, 0, -98, 43, -5, 30]
[25.5, 44.5, -6.5, -33.5, -49.0, -27.5, 19.0, 12.5]

[-23, 16]

[-3.5]