1. What do the following words have in common?

LATE

SCENE

NOXIOUS

2. What do the following words have in common?

OUT

USE

DUCT

STAIN

3. What do the following words have in common?

FILE

VERB

GRAM

POSE

FOUND

HINTS:

1,2,&3: All the words can be changed into new words by the addition of two or three letters.

Answers:

1. Each word can be preceded by OB to make a new word.

2. Each word can be preceded by AB to give a new word.

3. Each word can be preceded by PRO to yield new words.