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: [41, -66, -51, -81, 57, -30, 7]

SOLUTION: [-12.5, -58.5, -66.0, -12.0, 13.5, -11.5]

PROBLEM: [24, 36, -19, 61, 6]

SOLUTION: [30.0, 8.5, 21.0, 33.5]

PROBLEM: [-74, -5, -23, 74, -30, -71, 19, -56]

SOLUTION:
[-39.5, -14.0, 25.5, 22.0, -50.5, -26.0, -18.5]