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: [-25, 38, 7, 52, -63, -81, -63, -74, 85, 27, 2]

SOLUTION: [6.5, 22.5, 29.5, -5.5, -72.0, -72.0, -68.5, 5.5, 56.0, 14.5]

PROBLEM: [-36, -95, 37, 15, -39, 38, 8, -96, 78, 39]

SOLUTION: [-65.5, -29.0, 26.0, -12.0, -0.5, 23.0, -44.0, -9.0, 58.5]

PROBLEM: [-42, -19, 61, -87, 18, 14, -50]

SOLUTION:
[-30.5, 21.0, -13.0, -34.5, 16.0, -18.0]