The tragedy at Chernobyl nuclear plant occurred in what modern-day country?

Ukraine

What character did Nintendo originally design as a potential rival to Mario, appearing first in 1992? In what year did the classic horror film 'Halloween' first come out? In Monopoly, what penalty must you pay if you land on another player's hotel on Boardwalk? Who briefly works at Central Perk as a waitress? Which president declared the "Fourteen Points" at the end of World War I?