THREE  RIDDLES

1. What's a twelve-letter word, with two z's, for heavy lifting on the job?

2. You really can make a pig fly. Just add three letters. But which ones?

3. What do the following words have in common?

FEAT
HERB
RAIN

HINTS:
1. It's a pun on "lifting."
3. The answer is one long word.

Answers:

1. Embezzlement 
2. EON,  as in PIGEON 
3. If you run them together, you get FEATHERBRAIN.