Misc: What soviet republic was devastated by an earthquake in 1988?

Questions

1970s Hits: This singer was the first to have his first 3 singles hit #1?

1971 Num1 Hits: "Gypsies, Tramps, and Thieves" was #1 for how many weeks?

1971 Num1 Hits: "How Can You Mend a Broken Heart" was a #1 for whom?

1971 Num1 Hits: "Just My Imagination" spent two weeks on the #1 spot for what group?

1971 Num1 Hits: "Maggie May" was #1 for how many weeks?