TASK DEFINITION: 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].
PROBLEM: [43, 84]

SOLUTION: [63.5]

PROBLEM: [29, -54, 81, -85, 51, -12, -11, -68, 38, 83, 46]

SOLUTION: [-12.5, 13.5, -2.0, -17.0, 19.5, -11.5, -39.5, -15.0, 60.5, 64.5]

PROBLEM: [61, 7, -47, -99, -28, -43, 0, 80, 10, -31, 14, -94, -9]

SOLUTION:
[34.0, -20.0, -73.0, -63.5, -35.5, -21.5, 40.0, 45.0, -10.5, -8.5, -40.0, -51.5]