World's oldest underground railway

Which Sultan Of Delhi Was The First To Charge 'Ghari' Or Housetax ?
Alauddin Khalji.

Syed Salar Mela Is Held In Bahraich.
Queen of the Adriatic ?
Venice

Fear of cancer ?
Carcinophobia.

World's largest car making company- GENERAL MOTORS,USA

World's oldest underground railway at-LONDON

Atomic numbers invented by 'Moseley' of britain in 1913

Bleaching powder invented by 'tennant' of Britain in 1798