QUESTION: Generate a question with a factual answer?

ANS: How many acres were burned in the historic Cedar Fire of 2003?

QUESTION: Generate a question with a factual answer?

ANS: Where do the Seattle Opera and Pacific Northwest Ballet perform?

QUESTION: Generate a question with a factual answer?

ANS: What year did The Times change its name from The Daily Universal Register?

QUESTION: Generate a question with a factual answer?

ANS:
For his system to work, Bell had to change what about each code?