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: [56, -80, -51, -27, -97, 98, 99, -25, -55, 99, -9, -66, -83, 38, -95]

SOLUTION: [-12.0, -65.5, -39.0, -62.0, 0.5, 98.5, 37.0, -40.0, 22.0, 45.0, -37.5, -74.5, -22.5, -28.5]

PROBLEM: [28, -83, -37, -51]

SOLUTION: [-27.5, -60.0, -44.0]

PROBLEM: [-25, 87, -65, 13, -33, -91, 90, -44, 92]

SOLUTION:
[31.0, 11.0, -26.0, -10.0, -62.0, -0.5, 23.0, 24.0]