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: [7, -25, 16, 74, -18]

SOLUTION: [-9.0, -4.5, 45.0, 28.0]

PROBLEM: [-12, -11, -13, 37, 73, -7, -15, 62, 1, 5, 93, -30, 21, 29, 99]

SOLUTION: [-11.5, -12.0, 12.0, 55.0, 33.0, -11.0, 23.5, 31.5, 3.0, 49.0, 31.5, -4.5, 25.0, 64.0]

PROBLEM: [99, 82, -23, 96, -39, 59, -16, 25, -88, 38]

SOLUTION:
[90.5, 29.5, 36.5, 28.5, 10.0, 21.5, 4.5, -31.5, -25.0]