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]: [-21, 13, 42, 12, 48, 35, -98, -25, -7, 21, 35, -24, -45]
[EX A]: [-4.0, 27.5, 27.0, 30.0, 41.5, -31.5, -61.5, -16.0, 7.0, 28.0, 5.5, -34.5]

[EX Q]: [56, -71, -75, 36, 77, -13, 72, 40, -43]
[EX A]: [-7.5, -73.0, -19.5, 56.5, 32.0, 29.5, 56.0, -1.5]

[EX Q]: [2, 99, -11]
[EX A]:
[50.5, 44.0]