What gives beer its distinctive bitter flavour?

More Questions:

What is a Winter Banana?

Mace is the outer covering of which common spice?

Sarah Woodruff is the title character of what 1969 novel?

What category of writing are the Hugo and Nebula awards given for?

Andorra is landlocked by what two countries?

What two authors" characters are used to name the moon of Uranus?

Which planet is famous for its Big Red Spot?

What movie starred Johnny Depp as Willy Wonka?

What decade did Marty McFly go back to in "Back to the Future"?

In the TV show "The Simpsons', what nickname did Milhouse give himself?

What was Matt Dillon's horse on "Gunsmoke" named?

Who played the role of TV's J. J. Starbuck?

What war ended in 1898 with the Battle of Manila Bay?

In mathematics which prefix refers to 10 to the power of minus 12?

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