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: [92, -79, 17, 91, 49, 10, -50, -35]

SOLUTION: [6.5, -31.0, 54.0, 70.0, 29.5, -20.0, -42.5]

PROBLEM: [73, -32, -75, 39, -10, -15, 90, -89, -56, 40, -66, -89, -34]

SOLUTION: [20.5, -53.5, -18.0, 14.5, -12.5, 37.5, 0.5, -72.5, -8.0, -13.0, -77.5, -61.5]

PROBLEM: [85, 97, -86, 72]

SOLUTION:
[91.0, 5.5, -7.0]