Which quarterback lost four Super Bowls in four appearances with the Buffalo Bills?

Jim Kelly

In soccer, what phrase indicates scoring three goals in one game by the same player? On what feast day, celebrated on December 28th, do pranksters play tricks on friends and family in some Spanish-speaking countries? Which crewed flight was the first to orbit Earth in 1961? What molecule is the main source of energy in cells? What is the capital city of Argentina?