What spice is the most essential and valuable commodity in the "Dune" universe?

More Questions:

What hobby uses the Yoshizawa-Randlett diagramming system?

Which mint was the first to be used as a gum flavoring by the Wrigley Company?

Which art form derives its name from the Greek for "beauty writing"?

In Greek mythology Cronus and Rhea were the parents of who?

Pitchblende is the primary source for which fuel?

What type of creature is an Orb Weaver?

What is the astronomical term for the distance light travels in a vacuum in one year?

What is the atomic number of iodine?

Starfish belong to what animal phylum, whose name means "spiny skin"?

What was the nickname of the Spice Girls singer Geri Halliwell?

At what US city did Bugs Bunny traditionally lament taking a left "toin"?

By what name is the musician, Charles Hardin, better known as?

Which album did David Bowie release in 1983?

In what year did Dr. Roger Bannister become the first person to run a mile in under 4 minutes?

Who wrote the music for "Joseph and the Amazing Technicolor Dreamcoat"?