Add a Letter
Who said it?
Flags
Double double U
Super-heroes
100

Add a letter to the beginning of a word meaning "to speak" & you get this word meaning to speak indistinctly

Mutter

100

"Et tu, Brutus?" 

Julius Caesar

100

The colour of the stars on the US flag

White

100

A woman whose spouse has died and who has not married again

Widow

100

The group name for DC's collection of the World's greatest superheroes

The Justice League

200

Add a letter into a verb meaning to study hastily for a test & you get this dairy product

Cream

200

"To be or not to be, that is the question" 

Hamlet

200

The country whose flag is the Union Jack

The United Kingdom 

200

As per singer Petula Clark, the place you can always go "When you're alone and life is making you lonely" 

Downtown

200

Thor's home planet

Asgard

300

Add a letter to a fold-up bed & it becomes a male foal

Colt

300

"I'm gonna make him an offer he can't refuse" 

Marlon Brando / Vito Corleone

300

The symbols represented on the USSR flag

Hammer and sickle

300

A word that refers to uneasy embarrassment, lacking physical grace or coordination, or being difficult to deal with, handle, or use. 

Awkward

300

Superman's birth name

Kal-El

400

Add a letter to a 4 on the pH scale to get a  description of a nasty smell

Acrid

400

"What doesn't kill us makes us stronger" 

Freidrich Nietzche

400

National flag that features a shipwreck

Bermuda

400

To take back, remove, or pull away from something

Withdraw

400

The villain two-face was formerly known by this name

Harvey Dent

500

Add a letter to the term for your mom's sister to get a jeering insult 

Taunt

500

"I think therefore I am" 

Rene Descartes

500

The most common colour used in flags

Red

500

A family of songbirds found around the world on all continents

Swallow

500

The alter ego of superhero Ben Grimm

The Thing