11) What is the name of U2's tour that started in 2017?
12) Bono is the real name of which U2 band member?
13) What was the title of U2's first single?
14) Who produced and mixed U2's album All That You Can't Leave Behind?
15) What is the name of the lead singer of U2?
16) What year did U2 release their debut album?
17) What is the name of the first single released from U2's album The Joshua Tree?
18) What was U2's first number one single in the US?
19) What was U2's highest-selling album?
20) What year did U2 release their first album?