What color is pure caffeine?

More Questions:

In 1964, who became the first running back in NFL History to rush for more than 10,000 career yards?

Sweetbread is derived from what organ?

Which literary work's title character is named Bigger Thomas?

Which country owns the Canary Islands?

What is the second largest of the Hawaiian Islands?

'Fagus" is the Latin name of what type of tree?

In what direction would a sunflower face at the start of each day?

What is permanently-frozen subsoil called?

In which movie did Ione Skye portray a witch?

In Disney's "Pinocchio', what animal does Pinocchio begin to turn into after he reaches Pleasure Island?

In what century was the original Star Trek set?

What band took on Will Champion as its drummer even though he didn't play drums at the time?

Who plays the role of Kissy Suzuki in the movie "You Only Live Twice"?

What five-letter word did Time magazine coin in 1926 to refer to left-leaners?

In which state is Walla Walla County located?