1. Who wrote "the sign of four"
 Sir Arthur Conan Doyle
2. If you were to drive from Nanyuki to Nyeri in Kenya, what significant sign would you pass?
3. How many colours are there in the "Google" sign (or logo)
 4 - blue, red, green, yellow
4. What is the mathematical sign for "not equal"
 An equals sign with another line line cutting though it
5. What is the smallest animal to appear on a UK road sign
 Toad (migratory toads crossing)
6. If you saw road signs to the suburbs of Parramatta, Wollongong and Mosman, where would you be?
 Sydney, Australia
7. In 1923, a sign was erected on Mount Lee, California. What did it say?
 Hollywoodland. It was erected to advertise a new housing development. The LAND was dropped in 1949
8. Signs for tourist destinations in UK are what colour
9. "Drive carefully, come back soon" is a sign as you leave a US city via it's main boulevard. What are the more famous words on the other side?
 Welcome to fabulous Las Vegas
10. Which is the only car manufacturer to have it's name appear on a UK road sign.
 Ford (shallow river crossing)