Solve This Number Puzzle
What comes next in the series? (5, 20, 380, 144020, ?)Correct answers: 104
The first user who solved this task is Erkain Mahajanian.
#brainteasers #math #riddles
Dental malletIn 1867, Dr. William G. Bonwill of Philadelphia, Penn., invented the dental mallet while watching a telegraph key sounder operate in a Philadelphia hotel. |