SOLUTION:
The blackmailer is Peter because he is from the USA.
If you see the letter carefully, you will see MM/DD/YYYY is the American date format.
Advantages Of Riddles: Get A Conclusion
Why are riddles needed in life? A riddle is a problem that checks a person’s knowledge or mental skills. While solving a riddle, the solver has to put the pieces together logically to get the correct or fun answer for a question or riddle. You may question,” What the person gains by doing so?” The answer is very interesting. When he finds the answer, by logically putting the pieces, he will get better solving skills and memory power, which can improve himself. When you solve a riddle, you must notice different pieces and discover their place within the bigger picture. Solving this way might improve your visual-spatial reasoning.
