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: [20, -17, 41, -60, 2, 64, 36, 16, -43]

SOLUTION: [1.5, 12.0, -9.5, -29.0, 33.0, 50.0, 26.0, -13.5]

PROBLEM: [49, 14, 6, 65, 88, 7, 94, -1, 26, 50, 65]

SOLUTION: [31.5, 10.0, 35.5, 76.5, 47.5, 50.5, 46.5, 12.5, 38.0, 57.5]

PROBLEM: [80, -22, 40, -3, 60, -64, -50, -51, 36, -7, -19, -70, 1, 3, -56]

SOLUTION:
[29.0, 9.0, 18.5, 28.5, -2.0, -57.0, -50.5, -7.5, 14.5, -13.0, -44.5, -34.5, 2.0, -26.5]