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: [41, 85, 88, 99, -25, -32, -62, -9, -46, -89]

SOLUTION: [63.0, 86.5, 93.5, 37.0, -28.5, -47.0, -35.5, -27.5, -67.5]

PROBLEM: [20, -40, -63, 94, -53, -6, 18, 47, -18, -20, -94, 71, 17, 26]

SOLUTION: [-10.0, -51.5, 15.5, 20.5, -29.5, 6.0, 32.5, 14.5, -19.0, -57.0, -11.5, 44.0, 21.5]

PROBLEM: [-8, 13, 16, 33, -2, -27, -79, 71, -15, -15, 40, -50, 49, -70]

SOLUTION:
[2.5, 14.5, 24.5, 15.5, -14.5, -53.0, -4.0, 28.0, -15.0, 12.5, -5.0, -0.5, -10.5]