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: [84, -12, 27, 10, 23, -64, -8, 23, 3, -90, 87, 4, -74]

SOLUTION: [36.0, 7.5, 18.5, 16.5, -20.5, -36.0, 7.5, 13.0, -43.5, -1.5, 45.5, -35.0]

PROBLEM: [-5, -44, -38, -22, 11, -30, 24, -16, -28, -62]

SOLUTION: [-24.5, -41.0, -30.0, -5.5, -9.5, -3.0, 4.0, -22.0, -45.0]

PROBLEM: [52, 62]

SOLUTION:
[57.0]