A service line, an attack line, a net and a ball are all features of which sport?

A series of 1995 raids in California found dozens of Thai immigrants working in which kind of substandard garment facto… A series of comebacks highlights which man's life, including a final term as British prime minister at nearly 77 in 195… A series of novels including "Iron Knight, Silver Vase" and "Precious Sword, Golden Hairpin" includes which one filmed… A series of travel guides gives its title to which 1985 Anne Tyler novel? What is a set of buildings housing soldiers in a garrison called? What is a set of draft animals harnessed together called? What is a set with no elements called in mathematics? What word names a setback or piece of misfortune, such as a military defeat?