UnScramble this Word: d c a e l b e u?

Questions

In which year did Gordon Richards ride his first Derby winner?

Which Fijian golfer won the 1998 US Masters?

What was the country of Botswana called before 1966?

When Spencer Tracy won his first Academy award in 1937, his Oscar statuette mistakenly bore the name of which detective?

Named album of the year in 1981, which pop group's debut album was called "Dare"?