Title: Brain.
Question: Which of the two systems, reward or punishment is better understood?

Title: Muammar Gaddafi.
Question: What nation's military destroyed Libyan Arab Airlines Flight 114?

Title: Wood.
Question: Is strength at elastic limit in endwise compression or stress at elastic limit in cross-bending increased more by drying wood?

Title: Pub.
Question:
What pub holds the Guinness World Record as the oldest in England?