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: [72, -90, -99, -88, -87, -26, -40, -45, 69, 32, 57, 21, -67]

A: [-9.0, -94.5, -93.5, -87.5, -56.5, -33.0, -42.5, 12.0, 50.5, 44.5, 39.0, -23.0]
****
Q: [84, -12, 27, 10, 23, -64, -8, 23, 3, -90, 87, 4, -74]

A: [36.0, 7.5, 18.5, 16.5, -20.5, -36.0, 7.5, 13.0, -43.5, -1.5, 45.5, -35.0]
****
Q: [-67, 17, 69, 53, 33, -40, 75, -22, 30, 2, -54, 88, -54, 8]

A:
[-25.0, 43.0, 61.0, 43.0, -3.5, 17.5, 26.5, 4.0, 16.0, -26.0, 17.0, 17.0, -23.0]
****