Misc: In 1851 William ---------- discovers Ariel and Umbriel, satellites of Unranus. ?

Questions

In which year did shergar win the derby?

What colour does jaundice make the skin?

Which poet wrote the song of hiawatha?

Which actress spent a month in a rome prison in 1982 for tax irregularities?

What nationality was laszio biro inventer of the ball point pen?