Crazy, Single Digit, Single Letter and Pyramid-Type Representations for the Dates of the Year 25

This paper brings multiple representations of dates of the year 25. It contains four type of representations. First one is crazy representations. In this case, we have written 365 days of the year 25 starting from 01.01.25 to 31.12.25 in terms of increasing and decreasing orders of numbers 1 to 9 and 9 to 1. In this case, there are two ways of representations. One is with factorials and second is with Triangular numbers. These dates are considered as numbers, i.e., 010125 to 311225. These representations are by use of factorials along with basic operations.In the second case, the representations are of pyramid-type. In this case, the bases and powers are permutable. It contains only three types of operations, such as plus, minus and power. In the third case, the single digit representations are given, where the dates are written in terms of 9 digits seperately, i.e., in terms of 1, 2, 3, 4, 5, 6, 7, 8 and 9. Here also, plus, minus and powers are used. The forth case is for the single letter representations. The dates are written in terms of single letter "a", where a can take any value from 1 to 9 and still the results remains the same.