What planet was the first to be discovered by mathematical prediction and not observation?

More Questions:

Excluding the Umpires, how many players take part at the same time in a game of cricket?

Which bird is the national bird of Belarus?

Which two boxing weight classifications are named for animals?

What three letter word stands for a small opening and a clothing company?

In the world of racing, what does the abbreviation NASCAR stand for?

What Broadway musical featured the song "Hooverville"?

What US state has the longest coastline?

What English city was known to the Romans as Venta Bulgarum?

What is the name for a baby crocodile?

What organ in the human body is primarily affected by cystic fibrosis?

What TV family lived at Southfork Ranch?

What TV show takes place in the fictional city of Mockingbird Heights?

Gandhi's famous march to Dandi in 1930 was an act to protest against Great Britain's tax on what?

What royal subject married Anne Boleyn?

What country borders Zambia to the north?