What is it that turns blue litmus paper red?

More Questions:

Which river is often viewed as Russia's national river?

What iconic Hawaiian object was based on the Portuguese braguinha?

What color is the 3 ball in pool?

What is the colour of mourning in Turkey?

What carol contains the words "Fa-la-la-la-la-la-la-la-la'

Mentu is the Egyptian god of what?

In miles, approximately, how much Atlantic coastline does the state of New Hampshire have?

What European art museum has a glass pyramid in its courtyard?

What mammal gains 200 pounds per day during its first year?

When was the Pioneer 10 space probe launched into space?

What fish has green bones?

What famous horse belonged to The Lone Ranger?

Who's responsible for performing "The Ballad of The Green Berets"?

During the 1920s, gangster Al Capone ruled over what city?

Who played Judge Dredd in the 1995 film by the same name?