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: [-29, 22, -42, -12, 58, 25, -52, -44, 94, -43, -69]

SOLUTION: [-3.5, -10.0, -27.0, 23.0, 41.5, -13.5, -48.0, 25.0, 25.5, -56.0]

PROBLEM: [26, 9, 40, -46, -86, 9, 8, 38, 33, -64, -29, -53, -21, 75, -46]

SOLUTION:
[17.5, 24.5, -3.0, -66.0, -38.5, 8.5, 23.0, 35.5, -15.5, -46.5, -41.0, -37.0, 27.0, 14.5]