Why is the drinking age 21? You can thank the National Minimum Drinking Age Act of 1984 for this one. So while it's largely up to each state to decide their legal drinking age, this law told these states that they had to enact a minimum drinking age of 21 or else they would lose 10% of their highway funding. Since no state wanted to give up that funding, that means that no one under the age of 21 can legally purchase or publicly possess alcohol.
#7 that's a pretty darn cool factoid. guess i'll have to research to determine if true.
#8 some human-engineered fruits do not contain seeds, so a better way to understand the botanical term is "fruit is the product of a fertilised flower."