HALF AND HALF II
From  BRAIN GAMES FOR WORD NERDS
Francis Heaney

Each word in the left-hand column can be paired with a word in the right-hand column such that, if you cut each word in half and swap the second halves of the words, you'll get two new words. For example, given the words DOCTOR and RECENT, you could swap their second halves to make DOCENT and RECTOR. The words in the right-hand column are in random order.

1. MISERY             SPLASH
2. NATIVE             GAUGES
3. ORIENT             MARVEL
4. PARISH              ENDURE
5. RANCHO           BARLEY
6. RESTED            WINTER
7. SENATE             ENAMOR
8. SQUINT             POLKAS
9. TRASHY           MALIGN
10. TREBLE          PAROLE
11. VALIUM          PALTRY

Answers:

1. MISERY - WINTER = MISTER - WINERY
2. NATIVE - ENDURE = NATURE - ENDIVE
3. ORIENT - PAROLE = ORIOLE - PARENT
4. PARISH - POLKAS = PARKAS -  POLISH
5. RANCHO - GAUGES = RANGES - GAUCHO
6. RESTED - MALIGN = RESIGN - MALTED
7. SENATE - PALTRY = SENTRY - PALATE
8. SQUINT - SPLASH = SQUASH - SPLINT
9. TRASHY - MARVEL = TRAVEL - MARSHY
10. TREBLE - ENAMOR = TREMOR - ENABLE
11. VALIUM - BARLEY = VALLEY - BARIUM