What vitamin was isolated from fish liver oil in 1917?

More Questions:

Carl Lewis won gold medals in what event at four consecutive Summer Olympics?

In NATO's phonetic alphabet, what is the letter "B" referred to as?

Since 1949, what magazine has handed out the most prestigious "Car of the Year" Award?

What major God shares the same name in both Greek and Roman mythology?

According to Exodus, what is the sixth plague of Egypt?

Which US state is nicknamed the "Land of 10,000 Lakes"?

Winesap, Cortland, McIntosh and Rome are all types of what?

Ranger VII was the first US spacecraft to send back pictures of what?

What two dogs are bred to make a puggle?

Who invented the equals symbol?

What studio album did the band Men at Work release in 1981?

In 2006, what song became the first British single to top the US chArts in almost a decade?

Who keeps telling Captain Kirk that Earthlings are "highly illogical"?

Which US President was known as "the peanut president"?

What shapes are used in a Venn diagram?