George W. Bush and which of his presidential election opponents both went to Yale, graduating two years apart?

Colorado's state tree is the blue species of which evergreen? The First Continental Congress convened on September 5, 1774, and the Second on May 10, 1775, both in which city? Laetrile, an unproven alternative cancer remedy, is usually made from the pits of which fruit? Roger Bowen and McLean Stevenson, both famous for playing which "M*A*S*H" character, died in February 1996? Which U.S. state re-adopted its flag and seal in 1967, approving a Gilbert Stuart portrait of its namesake for the seal? Nelly Dean and Mr. Lockwood narrate the story of Heathcliff in which 1847 novel? Both parts of the 2004 pilot of which mysterious ABC drama were directed by co-creator J.J. Abrams? Which word describes something that is both pleasant and painful, like a fond memory of a happy time now gone?