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].

[EX Q]: [78, 3, 3, 50, 80, -76, -73, -20, -71, -29, -47, 4]
[EX A]: [40.5, 3.0, 26.5, 65.0, 2.0, -74.5, -46.5, -45.5, -50.0, -38.0, -21.5]

[EX Q]: [83, 67, 5, -15]
[EX A]: [75.0, 36.0, -5.0]

[EX Q]: [-62, -18, -58, -90, 84, 41, -16, 23, 46, 87, 6, 50, -82, 14]
[EX A]:
[-40.0, -38.0, -74.0, -3.0, 62.5, 12.5, 3.5, 34.5, 66.5, 46.5, 28.0, -16.0, -34.0]