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: [-61, -4, 59, 97, 77, 15, 50, -66, 99, 90, -77, 53]

A: [-32.5, 27.5, 78.0, 87.0, 46.0, 32.5, -8.0, 16.5, 94.5, 6.5, -12.0]
****
Q: [-91, 59, -52, 34, 5, 83, 49, -1, 27]

A: [-16.0, 3.5, -9.0, 19.5, 44.0, 66.0, 24.0, 13.0]
****
Q: [-18, -25, 83, 33]

A:
[-21.5, 29.0, 58.0]
****