[This is a puzzle of cryptic puns for the language-obsessed.  Each question has two answers which sound or look alike.  Example:
   Q. One who attacks during a moment of silence?
   A. preyer/prayer]

1. Make a comparison involving fungal growths on rocks and trees?
2. A golf reservation at 4:00 P.M. in England?
3. A drink and a hairdo?
4. A lie about one's irregular heartbeat?
5. Key of a song about a punctured tire?
6. A recap mentioning seasonally pleasant weather?
7. A man's perfume genetically identical to its source?
8. Follower of Moqtada al Sadr who writes with irony or sarcasm?
9. Dance icon moving up a step?
10. In opposition to poetry?
11. One who helps a female sibling?
12. The knock on a tortilla sandwich?
13. You say you like this type of shellfish?  Balderdash!
14. Little Jackie Horner showed poise under pressure when he pulled one out?
15. Small jousters who compete evenings, Monday through Friday?
16. A place to get non-fattening food?
17. What the Fat Lady sings on a highly popular daytime TV show?
18. Obsessed with one's hair and with a New England state?
19. Tissue rich in amino acids that easily changes shape or form?
20. A man who brings magic mushrooms to the party?
21. Carbon dioxide refrigerant compounding ocular problem when humidity is low?
22. Making the Dean's list several times in a row?

Answers

1. liken/lichen     2. teetime/tea time     3. quaff/coiff     4. a fib/a-fib

5. a flat/a-flat     6. summary/summery     7. cologne/clone    

8. Sadrist/satirist     9. Astaire/a stair     10. versus/verses    

11. assister/a sister     12. rap/wrap     13. abalone/ah, baloney

14. aplomb/a plum     15. wee knights/weeknights     16. locale/lo-cal

17. opera/Oprah     18. mania/Maineiac     19. protein/protean

20. fun guy/fungi     21. dry ice/dry eyes     22. honor roll/on a roll