What is frozen to make dry ice?

More Questions:

Achilles" heel was the result of him being dipped in what mythical river?

What Christmas treat does Pip give to the hungry convict in "Great Expectations"?

Rex Stout created what private eye?

What year saw the release of "The Catcher in the Rye"?

Before being renamed, what was Mumbai called?

What two US state names end with the letter Y?

In which country is the Simpson Desert located?

Which element of the periodic table is named for the father of Pelops?

The effect produced when sound is reflected back is known as what?

In The Simpsons, which character died by getting hit with T-shirts?

What royal subject married Wallis Simpson?

What US state has been led by Zell Miller and Alexander Stephens?

What US Supreme Court case brought an end to racial segregation in public schools?

What three provinces requested a single Dominion be formed in 1867, thus beginning to shape modern Canada?

Malagasy is the native language of which African country?