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].

[-18, -74, -7, 59, -76, -57, -99, 65]
[-46.0, -40.5, 26.0, -8.5, -66.5, -78.0, -17.0]

[-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]

[46, -49, 26, -45, 36, 99, 30, -13]

[-1.5, -11.5, -9.5, -4.5, 67.5, 64.5, 8.5]