Jen and Fiona play Uno together to see who can win more. Over the past 4 years, Jen's amount of wins have been approx. normally distributed with mean 494 and standard deviation 110. Fiona's are approx. normal as well with mean 501 and standard deviation 112.

1. What's the probability that Jen wins more games than Fiona if the games are all independent?
2. What's the probability that Fiona wins more games than Jen if the games are all independent?
3. What's the probability that Fiona wins TWENTY more games than Jen if the games are all independent?