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: [-36, 17, -25, -21, 45, 34, -39, 21, 71]

SOLUTION: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]

PROBLEM: [18, -10, 28, 29, -23, 98]

SOLUTION: [4.0, 9.0, 28.5, 3.0, 37.5]

PROBLEM: [44, -91, -94, -44, 58, -94, 0, 91, -22, -64, 19]

SOLUTION:
[-23.5, -92.5, -69.0, 7.0, -18.0, -47.0, 45.5, 34.5, -43.0, -22.5]