What is an Ishihara Test used for?

More Questions:

What soft drink line was named after a competitor's unusually tall bottles?

Which company was the first to offer a Valentine's Day chocolate box?

The necktie dates back to what century?

Which deceased employee of Claudius had a parrot named Captain Kidd?

Sarah Woodruff is the title character of what 1969 novel?

What fruit was referred to as "Golden Apple" in Greek myth?

What is the capital of Samoa?

Botany Bay lies off the coast of what country?

Who played the role of Jade in the 2009 movie "The Hangover"?

Which TV show's theme song stArts with the words "Come and knock on my door..."?

Who played Princess Leia in the original Star Wars movies?

In the TV show "The Simpsons', Lenny has a master's degree in what field?

Who was the first woman to appear naked on the front cover of "Radio Times"?

What Major League Baseball park was originally called Weeghman Park?

"The Obvious Child" was a 1990 hit for whom?