Take in a list of numbers and output a list containing all of the numbers greater than 8.
Take in a list of numbers and output a list containing all of the numbers between 10 and 20 (inclusive).
Take in a list of numbers. Multiply all of the numbers in a list by 10 to make the output list.
Take in a list of lists. Arrange the list of lists according to how many elements each list has, so longer sublists go first and shorter sublists go later.