AMERICAN STATES: Omaha is in what state?

Questions

What is the term for plants that produce shoots one year and flower,produce seeds and die the following year?

Jimmy Hill gave up his job as manager of which football club in 1967 to become a tv presenter?

Which African capital is named after a 19th century american president?

What is the name of the process by which a solid substance turns into a gas without first becoming a liquid?

What is the motto of the BBC?