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: [81, 73]

SOLUTION: [77.0]

PROBLEM: [29, 38, -89, -84, 82, -45, -18, 49, -59, 14, 90, -52, -60, 16, -29]

SOLUTION: [33.5, -25.5, -86.5, -1.0, 18.5, -31.5, 15.5, -5.0, -22.5, 52.0, 19.0, -56.0, -22.0, -6.5]

PROBLEM: [-68, 22, -96, 77, 86, -19, 90, 65, -47, -15, 8, 17, -64, -18, 64]

SOLUTION:
[-23.0, -37.0, -9.5, 81.5, 33.5, 35.5, 77.5, 9.0, -31.0, -3.5, 12.5, -23.5, -41.0, 23.0]