Problem: With what area of manufacturing are the names of 'Audermars Piguet & Cie', 'Zenith' and 'Ulysse Nardin' associated?
======
A: watchmaking

Problem: Eaton Hall in Cheshire has been the seat of which ducal family since the 1440's
======
A: duke of westminster

Problem: Which opera did Verdi supposedly compose for the opening of the Suez Canal?
======
A: aida

Problem: Where did the Phnom Penh stampede occur, on 22 November 2010 when 378 people died and upwards of 755 more were injured?
======
A:
on bridge