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: [-27, 83, -67, 51, -57, -18, -59, 85, -84, 68, 16, 61]

SOLUTION: [28.0, 8.0, -8.0, -3.0, -37.5, -38.5, 13.0, 0.5, -8.0, 42.0, 38.5]

PROBLEM: [-76, -3, -6, -74, 70, -26]

SOLUTION: [-39.5, -4.5, -40.0, -2.0, 22.0]

PROBLEM: [-88, 88, -57, -12, -93, 2, 2, 79, 76, 75, -20, 88, -1, -41]

SOLUTION:
[0.0, 15.5, -34.5, -52.5, -45.5, 2.0, 40.5, 77.5, 75.5, 27.5, 34.0, 43.5, -21.0]