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, 85, 88, 99, -25, -32, -62, -9, -46, -89]

SOLUTION: [63.0, 86.5, 93.5, 37.0, -28.5, -47.0, -35.5, -27.5, -67.5]

PROBLEM: [-30, 37, -83, -63, 52, 22, 80, 75, -98, -17]

SOLUTION: [3.5, -23.0, -73.0, -5.5, 37.0, 51.0, 77.5, -11.5, -57.5]

PROBLEM: [-7, 40, 98, 92, -81, 78, -22, 21]

SOLUTION:
[16.5, 69.0, 95.0, 5.5, -1.5, 28.0, -0.5]