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, 95, -59, -100, -98, -7, 50, 93, 59, -78, 31, -79]

SOLUTION: [44.0, 18.0, -79.5, -99.0, -52.5, 21.5, 71.5, 76.0, -9.5, -23.5, -24.0]

PROBLEM: [40, 34, -39]

SOLUTION: [37.0, -2.5]

PROBLEM: [-28, 22, 62, -33, -33, 32, 79, -17, 4, -28, 23, 39, 7, 3, -39]

SOLUTION:
[-3.0, 42.0, 14.5, -33.0, -0.5, 55.5, 31.0, -6.5, -12.0, -2.5, 31.0, 23.0, 5.0, -18.0]