#176 What's the Kennection?

1) Japanese 'donburi' are meals served in what dishes?
2) In what Matt Damon movie does John Malkovich play a Russian poker whiz called "Teddy KGB"?
3) A popular variety of what vegetable is named for Elizabeth Hubbard of Marblehead, Massachusetts, who provided the first seeds?
4) In the classic book Tom Brown's Schooldays, Tom attends what venerable Warwickshire public school?
5) Dolbear's Law defines the relationship between temperature and the chirping speed of what animal?
What's the "Kennection"?
Ken Jennings was on Jeopardy! 75 times in a row, so long that your grandma got sick of him. He is the author of nine books, most recently the Junior Genius Guides for children. He lives in Seattle.