useless trivia: What Word Means: A Belly Button That Protrudes?

Questions

Name of the Gallic tribe inhabiting the Ile de la cite in Paris at the end of the 3rd century?

Name the four main islands that make up Japan?

Where is the sculpture nicknamed The Floozie in the Jacuzzi, unveiled in 1993, located?

One of the Seven Wonders of the World, The Mausoleum at Halicanassus was built by whom?

Name of a cylindrical clay oven traditionally used in India?