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].

Q: [-31, 21, -23]

A: [-5.0, -1.0]
****
Q: [30, -51, 47]

A: [-10.5, -2.0]
****
Q: [11, 88]

A:
[49.5]
****