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: [7, -23]

A: [-8.0]
****
Q: [91, 3, -59, 63]

A: [47.0, -28.0, 2.0]
****
Q: [-77, 76, 21, 100, 19]

A:
[-0.5, 48.5, 60.5, 59.5]
****
