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: [70, 88, 58, -25, 49, -89, 76, -46, 59, 48, -40, -62]

SOLUTION: [79.0, 73.0, 16.5, 12.0, -20.0, -6.5, 15.0, 6.5, 53.5, 4.0, -51.0]

PROBLEM: [91, 12, -2, 74, -96, 64, 58, -44, -31, 38, 1, -26, -88, -67, 80]

SOLUTION: [51.5, 5.0, 36.0, -11.0, -16.0, 61.0, 7.0, -37.5, 3.5, 19.5, -12.5, -57.0, -77.5, 6.5]

PROBLEM: [-69, 85, -3, -14, 11, 29, 63, -12, -77, -47, -21, 79, -89]

SOLUTION:
[8.0, 41.0, -8.5, -1.5, 20.0, 46.0, 25.5, -44.5, -62.0, -34.0, 29.0, -5.0]