FUN FACT OF THE DAY:
So we have always been fascinated with secret codes, and they've been used particularly during wartime.
Did you know that Johnny Carson served for the US Navy as a communications officer? He was in charge of decrypting secret messages.
How cool is this?
No doubt he's had an amazing career as the famous host of The Tonight Show for 30 years, but his duties in the Navy are not widely known about him.
When was the last time YOU tried to solve an encoded message?