1. What do the following words have in common?

HIMALAYAN
HERITAGE
YOUNG
USURP
MERIT

2. What do the following words have in common?

PLOTS
CURFEW
GERMANY
CHROMOSOME

Answers:

1. Each words begins with a pronoun:

HIMalayan
HERitage
YOUng
USurp
MErit

2. Each word ends with a quantifier:

pLOTS
curFEW
gerMANY
chromoSOME

Credit: EquinoxParty 42 
National Puzzlers' League - Mar. 2006
Michael Constant
OH NO, NOT AGAIN