Which word names both a heavy scarf worn against the cold and a device that reduces car noise?

A 1795 Haydn symphony and a 1914 Vaughan Williams symphony are both nicknamed for which city? A heartwarming 1979 Coke commercial featured which Pittsburgh Steelers lineman tossing his jersey to a boy? What is a heavy bombardment of artillery called? A heavy oak table prevented which leader's assassination by a briefcase bomb on July 20, 1944? Which heavy twill fabric is used for jeans and other work or leisure garments? Which Hebrew name for God is represented by the four letters YHWH? Which "Hee Haw" regular, known for her straw hat with a dangling price tag, died in Nashville in 1996? In which stories are the Heffalump and the Woozle creatures that confuse the characters?