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: [40, 34, -39]

SOLUTION: [37.0, -2.5]

PROBLEM: [36, -11, 53, -4, 26, -25, 45, -41]

SOLUTION: [12.5, 21.0, 24.5, 11.0, 0.5, 10.0, 2.0]

PROBLEM: [-38, -95, -49, -46, 5, -19, -36, 64, -78, -4, -62]

SOLUTION:
[-66.5, -72.0, -47.5, -20.5, -7.0, -27.5, 14.0, -7.0, -41.0, -33.0]