1. What do the following words have in common?

RODE
EARTH
LUMP
OAR

2. What do the following words have in common?

ENSURE
LEAVE
HEW
ENTER
LIMB

HINTS:
1. It has to do with the last letter of each word.
2. A letter has to be added to each word.


Answers:

1. Without dropping it, use the last letter of each word as the first letter, to get a new word.

ERODE / HEARTH / PLUMP / ROAR

2. Each word can be preceded by C to make a new word.

Credit: Chicago Tribune Crossword
Arlan and Linda Bushman (Idea)
C - [C minus]