Which heavy twill fabric is used for jeans and other work or leisure garments?

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 word names both a heavy scarf worn against the cold and a device that reduces car noise? 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? A Heisman Trophy winner at Oklahoma State, who was NFL Offensive Rookie of the Year in 1989 with the Detroit Lions?