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Based on the answers you didn't get right, here are reviews

1. For Question #1: CHF is Swiss Franc.
2. For Question #2: NZD is New Zealand Dollar.
3. For Question #3: CAD is Canadian Dollar.
4. For Question #4: ZAR is South African Rand.
5. For Question #5: SGD is Singapore Dollar.
6. For Question #6: INR is Indian Rupee.
7. For Question #7: PHP is Philippine Peso.
8. For Question #8: CNY is Chinese Yuan.
9. For Question #9: JPY is Japanese Yen.
10. For Question #10: NOK is Norwegian Krone.
11. For Question #11: NGN is Nigerian Naira.
12. For Question #12: BRL is Brazilian Real.
13. For Question #13: HBT is Thai Baht.
14. For Question #14: USD is the United States Dollar.
15. For Question #15: GBP is the Great Britain Pound.
16. For Question #16: RUB is Russian Ruble.
17. For Question #17: MXN is Mexican Peso.
18. For Question #18: TRY is Turkish Lira.
19. For Question #19: EUR is Euro.
20. For Question #20: AUD is Australian Dollar.