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: [-78, -89, -72, 90, -85, -78, -35]

SOLUTION: [-83.5, -80.5, 9.0, 2.5, -81.5, -56.5]

PROBLEM: [-13, 97, -60, -24, 6, 8, -89, -98, 20, -76]

SOLUTION: [42.0, 18.5, -42.0, -9.0, 7.0, -40.5, -93.5, -39.0, -28.0]

PROBLEM: [30, 47, 0]

SOLUTION:
[38.5, 23.5]