Lakes
Birds, Birds, Birds
The X files
Languages
Classical Music
100

It is the world's highest lake navigable to large vessels

Lake Titicaca

100

It loves to swim, but this bird seen here is one of the few that do not fly

Penguin

100

A shortened form of Christmas is spelled this way

Xmas

100

Romanian developed from this language of the ancient Romans

Latin

100

This Austrian child prodigy began composing minuets when he was only 5

Wolfgang Amadeus Mozart

200

It is Australia's largest inland lake 

Lake Eyre

200

At Hogwarts, these birds delivered mail to students once a day

Owls

200

High-energy radiation used to take a picture of your insides

X-rays

200

Athenians speak the Attic dialect of this language

Greek

200

This German composer's 5th Symphony in C Minor has a famous opening

Ludwig van Beethoven

300

This largest of the Great Lakes is also the highest above sea level at 600 fee

Lake Superior

300

The largest bird in the world is also the fastest on land

Ostrich

300

A trademarked name, it's often used as a synonym for a photocopy

Xerox

300

Most of the classes in Quebec schools are taught in this language

French

300

Escamillo is a toreador in "Carmen", an opera set in this European country

Spain

400

This lake on the French-Swiss border shares its name with the Swiss city at its southern end

Lake Geneva

400

It is the national symbol of the United States 

Bald Eagle / Eagle

400

A percussion instrument played with small mallets

Xylophone

400

Javanese is the native language of people on the island of Java in this country

Indonesia

400

The music of this Tchaikovsky "Suite" comes from his 1892 ballet, popular at Christmas

The Nutcracker

500

Despite its huge size, this saltwater "sea" bordering Iran has no tides

Caspian Sea

500

They are the only species of birds that are able to fly backwards  

Hummingbirds

500

It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts

Xenon

500

Most of the people of Brazil speak this official language

Portuguese

500

Prokofiev wrote a famous orchestra piece called "Peter and" this animal

The Wolf