Heard a few of these before and they vary in accuracy/completeness:
Quote:that Alaskan citizens do not pay any state taxes; instead every person over the age of 6 months receives an oil dividend check of about $1000 per year.
State-wide, pretty much, though there are still some local taxes (sales, property). The Permanent Fund Dividend is true (varies each year), though you must have been a resident of Alaska for a year and intend to remain in Alaska "indefinitely" (can't claim residency elsewhere, can't be absent from the state for over 180 days without good reason).
Quote:that the damage done to the Ozone layer due to use of chemicals in the past few decades ( like CFCs but these kind of chemicals use has now been stopped ) will be completely repaired by itself by 2050.
The projected date is continually being pushed back from the 2050 estimate. It's true that the Montreal Protocol is designed to phase out ozone-depleting substances, but it's still just an "agreement" and they continue to see some use. There might be a little discussion about the total impact of human contributions to climate change overall, but ozone depletion and its effects are pretty easy to demonstrate.
Quote:that Dueling is legal in Paraguay as long as both parties are registered blood donors.
This one gets repeated a lot to the point where it's hard to find the lack of a law, so it keeps going around. Seriously, any search for a source just turns up the exact same sentence repeated with no legal citation. However, Uruguay did allow dueling up until 1992.
Anyway, it's fun, but take it all with a grain of salt and stay skeptical.