Things that start with T
The color yellow
Things that are round
100

Something you call people on

Telephone

100

Yellow fruit

Banana, pineapple, lemon, starfruit, mango

100

Black and white ball used in a sport?

Soccer ball

200

Someone who shares knowledge with children and teens

Teacher 

200

Yellow flower 

Daffodil, tulips, Marigold, Sun flower...

200

Orange ball used in a sport

Basket ball

300

Something that pirates look for 

Treasure 

300

Yellow vegetable

Corn, squash, pepper

300

Something you use in a game to knock down traditionally 10 pins

Bowling ball 

400

A musical instrument 

Trumpet/trombone/triangle/tuba

400

Quack Quack! Baby animal 

Duck

400

A smaller round map version of earth

Globe

500

a long, thin strand of cotton, nylon, or other fibers

Thread 

500

Found at the center of the solar system, this star has a brilliant, golden yellow color. The closest star near us

Sun

500

The letter after N in the Alphabet 

O