How tall is the London Eye? Who opened Britain's first Indian restaurant? Who was the fifth wife of Henry VIII?
If Meghan Markle doesn't already know the answers, she needs to start studying.
All three are potential questions on a test given to those who, like Prince Harry's fiancee, want to become British citizens.
Kensington Palace says the California-born Markle intends to take UK citizenship after she marries Harry on May 19th at Windsor Castle.
But Markle will soon discover that it takes more than marrying a prince to become British.
It also requires time, money, a good memory for obscure British trivia and the ability to untangle red tape.
To get her visa, the 36-year-old Markle will have to provide evidence that her relationship with Harry is genuine and she really is divorced from her first husband, Trevor Engelson.
She also must show that Harry earns at least 18,600 pounds ($26,000) a year or has 62,500 pounds ($87,100) in savings, and can provide accommodation ``without recourse to public funds.''
That shouldn't be a problem for this particular couple, who can also afford the fees, which can amount to almost 7,000 pounds ($9,760) during the process.
One thing Markle will find it hard to avoid is the "Life in the U-K" test, a notoriously quirky set of questions covering everything from history and literature to customs and politics.