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: [53, -72, 28, 71, -20, 47, 3, 68]

SOLUTION: [-9.5, -22.0, 49.5, 25.5, 13.5, 25.0, 35.5]

PROBLEM: [-68, 93, -7, 31, -45, -70, -28, 78]

SOLUTION: [12.5, 43.0, 12.0, -7.0, -57.5, -49.0, 25.0]

PROBLEM: [77, 51, -5, -43, 28, -25, 85, -1]

SOLUTION:
[64.0, 23.0, -24.0, -7.5, 1.5, 30.0, 42.0]