The answer to each question is just one letter...
1. Which letter is used in the coding system for food colours, preservatives and additives?
2. First shown in 1983, in which American science fiction TV series were a number of aliens trying to gain control of the Earth?
3. The character played by Tommy Lee Jones in the film Men in Black was called Agent what?
4. What was the name of Jethro Tull's 1980 album?
5. Which letter is used to describe absolute zero, a temperature equal to minus 273 degrees Celcius?
6. Which character did John Cleese play in the James Bond film The World Is Not Enough?
7. What is the Roman numeral for 500?
8. In the 1963 movie Itís A Mad Mad Mad Mad World, the treasure is buried below which letter?
9. What is the chemical symbol for Potassium?
10. Which letter is represented by a single dot in Morse Code?