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: [-10, 80, -47, 88, 17, 70, -21, 5]

SOLUTION: [35.0, 16.5, 20.5, 52.5, 43.5, 24.5, -8.0]

PROBLEM: [33, 15, -60, -30, 13, 49]

SOLUTION: [24.0, -22.5, -45.0, -8.5, 31.0]

PROBLEM: [-64, -46, 21, -97, -86]

SOLUTION:
[-55.0, -12.5, -38.0, -91.5]

