What happened in London in 1666? What problem did it solve? Do your research.
The Great Fire of London - The Great Plague
What's "The Gherkin"? Do you know any other similar things in London?
A modern building (skyscraper) in a shape of a pickle. Other skyscrapers are "The Shard" or "The Cheesegrater" or "The Walkie Talkie"
Do you know any famous people who live in London? Where do they live and what do you know about them?
The Queen - Buckingham Palace, the PM Boris Johnson - 10 Downing Street
In Hyde Park, there a so called "Speakers' Corner" - what could it be?
People get on a "soapbox" and proclaim their views to the world.
How do people get around in London. Compare public transport to your own city.
double deckers, London underground = the tube, airports: Heathrow, Luton, Stansted, Gatwick, London City
What is "the changing of the guards" and why is it so popular with tourists?
Changing of the royal guards is a ceremony that takes place several times a day between Buckingham Palace, St James's Palace and Wellington Barracks.
What's cockney? Do your research.
It's a typical London rhyming dialect / slang. Originally used by criminals to hide real meanings of words (money = bees and honey, Derry and Toms = bombs)
Do you know about sports and London?
Wembley Stadium - FA Cup, Wimbledon - tennis, ...
What would you visit in London on a three-day trip?
London Bridge, Tower Bridge, London Eye, Big Ben, Houses of Parliament, Westminster Abbey, St Paul's Cathedral, Greenwich Meridian, Madame Tussauds, ...
London is home to several football teams - do you know any?
Chelsea, Arsenal, Tottenham Hotspur, Fulham, West Ham United, ...
What happened in London in 2012? Did you watch it?
Summer Olympics
What typical local food can you eat in London?
"pub grub" (bangers and mash, steak and kidney pie ...), fish and chips, curry