ලෝකයේ ඔබ නොදත් විශ්මිත කරුණු සිංහලෙන්. "Did you know facts" in Sinhala. Did you know the Hawaiian alphabet has only 13 letters? Did you know a cat has 32 muscles in each ear? Probably you didn't, There are so many wonderful things / facts that you never knew. Join with us and get your knowledge book updated daily.