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]: [-45, -84, 35, 40]
[EX A]: [-64.5, -24.5, 37.5]

[EX Q]: [-61, -4, 59, 97, 77, 15, 50, -66, 99, 90, -77, 53]
[EX A]: [-32.5, 27.5, 78.0, 87.0, 46.0, 32.5, -8.0, 16.5, 94.5, 6.5, -12.0]

[EX Q]: [-21, -18, 10]
[EX A]:
[-19.5, -4.0]