2222 dollars
In perfect uncirculated condition, a 1991 Canadian $20 Dollar note is worth between $22 and $30 US Dollars. In any other condition, it is worth face values ($19.50).
as of today, Jan. 21, 2009 - - $15.88 USD
Yes
25 cents.
Canadian "Loonie" dollars are ordinary circulation coins and have no extra value, so their worth in the US depends only on the current exchange rate. Rates change every day so any answer posted here would be out of date almost immediately. While it's not normal WikiAnswers policy to say "use the Internet", that's the best approach in this case. You can check a site such as www.xe.com, CNNMoney, etc. for the latest conversion factors.
$20
About £90 GBP
$987
Is worth less than 50 cents.
Just like modern US $1 coins, modern Canadian dollars are made of a gold-colored base metal, not real gold. Your coin is an ordinary circulation coin worth face value only, about US$0.98 as of late 2010.
Yes. It's still worth $20 in Canada.
If it doesn't contain any Silver at all, the market price is set by the mintage number for 1991 one dollar coins + condition of the coin.