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: [-16, 54, 42]

SOLUTION: [19.0, 48.0]

PROBLEM: [-51, -25, -51, 46, -78, 9, -14, -14, -25, 79, 56, -5]

SOLUTION: [-38.0, -38.0, -2.5, -16.0, -34.5, -2.5, -14.0, -19.5, 27.0, 67.5, 25.5]

PROBLEM: [0, -19, -44, 90, -50, 22, 23, -79, -37, 9, -3]

SOLUTION:
[-9.5, -31.5, 23.0, 20.0, -14.0, 22.5, -28.0, -58.0, -14.0, 3.0]