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: [-16, 54, 42]

SOLUTION: [19.0, 48.0]

PROBLEM: [43, 90, -72, -46, 22]

SOLUTION: [66.5, 9.0, -59.0, -12.0]

PROBLEM: [11, -59, 29, 24, 3, 51, 70, -67, -47, 70, -97, 14]

SOLUTION:
[-24.0, -15.0, 26.5, 13.5, 27.0, 60.5, 1.5, -57.0, 11.5, -13.5, -41.5]