Problem: George Fox founded which religious movement in the mid- 17th century?
======
A: society of friends

Problem: The Law of Large Numbers is a principle which seeks to explain what, commonly considered inexplicable?
======
A: coincidences

Problem: In what year did the infamous Jack the Ripper terrify the population of east London?
======
A: 1888

Problem: In the game of chess, 'en passant' involves which chess pieces?
======
A:
pawns