5 Questions: Cracking the Code

1 of 5
Semaphore signals are usually transmitted using what device?
Bells
Flags
Lamps
Sirens
2 of 5
Ubbi-Dubbi is a "secret" language popularized on what PBS children's television show?
Zoom
Reading Rainbow
Mister Rogers' Neighborhood
Sesame Street
3 of 5
What was the first name of the man who created Morse code?
Stephen
Simon
Scott
Samuel
4 of 5
The clues in the 2003 novel The Da Vinci Code lead to the tomb of what astronomer?
Johannes Kepler
Nicolaus Copernicus
Isaac Newton
Galileo
5 of 5
What serial killer was famous for sending ciphered messages to San Francisco newspapers?
The Night Stalker
The Green River Killer
Son of Sam
The Zodiac