Start and ends with T
Mythology
Also a Taylor Swift song
This category is "Mid"
Everyone's favorite subject: Math
200

You use this to turn the temperature in your house

Thermostat

200

A popular athletic brand and the Greek goddess of victory

Nike

200

Careful! This washing machine cycle using cold water and low spin speed is recommended for lingerie and silk neck ties.

Delicate

200

"The Demon of Noon" is the translation of the French term for this, which may lead to buying a sportscar.

Mid-life crisis

200

The top of a fraction is called this

Numerator
400

A time of day and a young-adult vampire romance novel.

Twilight

400

Come sail away on this Greek river of myth whose name means "hateful"

Styx

400

This country artist married to Faith Hill was inducted into the headwear hall of fame in 2014 to recognize his adoration for cowboy hats.

Tim Magraw

400

In Norse myth, the Gods killed a giant named Aurgelmir and used his body to create this place, the realm for humans.

Midgard

400

5! or 5 factorial equals

120

500

Joel Olsteen's resume includes pastor, author, and this 13-letter word.

Televangelist

500

Double Jeopardy

Maui

500

This color appears in the names of two different MLB teams -- one in the Midwest and one in the Northeast

Red

500

It's the name of a type of fly or Barbie's pregnant bestie

Midge

500

What number does the Roman numeral D represent

500

800

A violent wind storm

Tempest

800

Athena's Roman equivalent, this Goddess had a shrine on the Aventine that was a meeting place for writers and actors.

Minerva

800

It's not yours it's this word that comes before "craft" and "sweeper" in the names of these popular video games.

Mine

800

This club has a medium degree of loft and are typically 4,5, or 6 irons

midiron

800

Every odd number has what letter in it

E

1000

This stone-throwing siege engine was a common, powerful weapon until the advent of gun powder

Trebuchet

1000

Prometheus gave this gift to humanity.

Fire

1000

While crossing the George Washington bridge from N.J. drivers are greeted by a sign with these four words. (Its been waiting for you)

Welcome to New York

1000

This topmost part of the brainstem connects the forebrain to the pons and cerebellum. 

Midbrain

1000

What mathematical theory explains the randomness of nature.

Butterfly effect