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: [-50, 66, -98, -47, -11]

SOLUTION: [8.0, -16.0, -72.5, -29.0]

PROBLEM: [-64, -46, 21, -97, -86]

SOLUTION: [-55.0, -12.5, -38.0, -91.5]

PROBLEM: [68, -10, 66, 16, 85]

SOLUTION:
[29.0, 28.0, 41.0, 50.5]