1. What do the following words have in common?

NOW

PEAR

CRAM

ELF

TALE

TRAIN

LATE

HOW

2. What do the following words have in common?

BULLET

STAR

SERVICE

MEDAL

SCREEN

3. What do the following words have in common?

SLOP

BOTH

SHOT

STOP

ROTS

HINTS:

1. The same single letter will change each word into a new one.

2. "Wedding anniversary" could be added to the list.

3. Adding the same single letter to each word will yield five new words.

Answers:

1. Each word can be preceded by the letter S to make new words.

2. Each word can be preceded by SILVER.

3. Inserting a second O into each word after the first one will give the new words.