Food
It's a verb and a noun
Animal Idioms
Geography
Add an "-ar"(2x)
100

 American global chain of hamburger fast food restaurants that serves the "whopper"

What is Burger King?

100

to assume a dramatic role, or a law passed by Congress 

What is “act”?

100

Someone who reads a lot.

What is a bookworm

100

Showing the round Earth on these flat tools distorts some details.

What are Maps?

100

 A child's toy becomes a unit of currency.

What is Doll and Dollar?

200

Sweetened dessert that is baked in the oven and served mostly on birthdays.

What is cake?

200

to search thoroughly, or an implement used to groom hair

What is “comb”?

200

To be reallly quiet.

What is as quiet as a mouse?

200

It’s the only continent with no active volcanoes.

What is Australia?

200

 A form of medicine becomes a vertical structure.

What is pill and pillar?

300

A square, baked, chocolate dessert.  

What are brownies?

300

to complete a task, or the aftertaste of wine

What is “finish”?

300

To solve two problems at once with the same action or solution.

kill two bird with one stone.

300

The word used to describe the most populated areas like cities.

What is urban?

300

A command given to a dog becomes a string instrument.

What is Sit and Sitar?

400

A widely cultivated plant in the gourd family that's green and can be made into pickles

What is a Cucumber?

400

to enhance food’s flavor, or a quarter of the year

What is “season”?

400

A secret that was supposed to be kept quiet that was told.

What is :to let the cat out of the bag?

400

The word used to describe less populated areas such a the countryside and farmland.

What is rural?

400

A pastry becomes hardened dental plaque

What is Tart and Tartar?

500

A sweet, edible fruit produced by a tree with over 2500 varieties in the world

What are apples?

500

to express disapproval, or the goal of an effort

What is “object”?

500

To eat a lot, in large quantities.

What is to eat like a horse?

500

The capital city of Yukon.

What is Whitehorse?

500

A family member becomes murky and ambiguous.

What is Uncle and Unclear?