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].

[-21, 13, 42, 12, 48, 35, -98, -25, -7, 21, 35, -24, -45]
[-4.0, 27.5, 27.0, 30.0, 41.5, -31.5, -61.5, -16.0, 7.0, 28.0, 5.5, -34.5]

[-37, 89]
[26.0]

[-49, -31, 78, 76, -67, 61, -63, 97, 14, 61, 92]

[-40.0, 23.5, 77.0, 4.5, -3.0, -1.0, 17.0, 55.5, 37.5, 76.5]