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: [22, -56]

SOLUTION: [-17.0]

PROBLEM: [-49, -91, -7]

SOLUTION: [-70.0, -49.0]

PROBLEM: [-49, 47, 72, 72, 91, 46, -41]

SOLUTION:
[-1.0, 59.5, 72.0, 81.5, 68.5, 2.5]