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: [55, -46, 64, -40]

SOLUTION: [4.5, 9.0, 12.0]

PROBLEM: [-29, 22, -42, -12, 58, 25, -52, -44, 94, -43, -69]

SOLUTION: [-3.5, -10.0, -27.0, 23.0, 41.5, -13.5, -48.0, 25.0, 25.5, -56.0]

PROBLEM: [7, 31]

SOLUTION:
[19.0]