My favorite:
Season 7
Episode 21
Lost City
When Colonel O'neall [two L's] is trying to finish a crossword puzzle while the fate of the world is dependant on him.
Carter reads off one of the questions and answers during a conversation about the ancient knowledge downloaded into Oneall's head - "The clue is Celestial Body. You wrote Uma Thurman". O'neall replies with a grin "Yes". Daniel Jackson "It has to mean something". Oneall "It does". Oneall snatches the crossword puzzle from Carter.
Ramos