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]: [-50, -74, 52, -21, 29, -11]
[EX A]: [-62.0, -11.0, 15.5, 4.0, 9.0]

[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]: [74, -86, -30, 13, 65, -49, 5, -17, -82, -99, 80]
[EX A]:
[-6.0, -58.0, -8.5, 39.0, 8.0, -22.0, -6.0, -49.5, -90.5, -9.5]