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: [38, 27, 49]

SOLUTION: [32.5, 38.0]

PROBLEM: [7, -10, -55, 26, -43, 13, 16, -100, 57, 71, 98, -89, 35]

SOLUTION: [-1.5, -32.5, -14.5, -8.5, -15.0, 14.5, -42.0, -21.5, 64.0, 84.5, 4.5, -27.0]

PROBLEM: [21, -85, -14, 69, 100]

SOLUTION:
[-32.0, -49.5, 27.5, 84.5]