Math
Music
Space Exploration
U.S.A
Chess
100

7x7

What is 49?

100

The note lower than A# but higher than G#

What is A?

100

This is the planet all known forms of life live

What is Earth?

100
There are this many states in the US

What is fifty?

100

There are this many pieces in a chess set (black and white)

What is 32?

200

3,605.357 in word form

What is three thousand, six hundred five and three hundred fifty-seven thousandths?

200

The number of keys on a piano

What is 88?

200

This is what the Sun is mostly made out of

What is gas?

200

The smallest state in the US

What is Rhode Island?

200

You can have this many queens in chess

What is nine?

300

33-19+(8+6x5)/4

What is 13?

300

Decrescendo, or this, is a music term for gradually getting softer 

What is diminuendo?

300

This is what in space the Romans used to worship

What is the Sun?

300

The westernmost US state

What is Alaska?

300

When there is the same position three times on the chessboard

What is three-move repetition or threefold repetition?

400

5 to the fourth

What is 625?

400

This is what music that is made by something that it's purpose isn't music is called

What is found sound?

400

This is the Sun's true name

What is Sol?

400

There are this many counties in California

What is 58?

400

The opening 1 e4, ...c6

What is the Caro Kann?

500

3 to the tenth

What is 59,049?

500

Trumpets, for instance, need valve oil to work properly. French Horns, though, can use this equally as well

What is rotor oil?

500

This is what NASA stands for

What is National Aeronautics (and) Space Administration?

500

The most populated county in California

What is Los Angeles?

500

The Dragon (a variation of the Sicilian Defense) is no longer played because of this attack

What is the Ugoslaw Attack?