Theobromine, a substance found in what aphrodisiac, is poisonous to dogs?

More Questions:

Apple Brown Betty is a dessert comprised of apples and what?

How many hits does it take to sink the submarine in the game of "Battleship"?

What is a community of ants called?

What word describes a cut of steak containing both the T-bone and the tenderloin?

Whose death is a result of the souring of her relationship with her lover Count Vronsky?

What poet coined the phrase "candy is dandy, but liquor is quicker"?

Which stretch of water is Europe's most northern boundary?

Hells Canyon is located in which two US states?

Ljubljana is the capital of which European country?

In The Simpsons, who developed a serious slot-machine gambling problem?

What are the Blues Brothers" first names?

What US state has been governed by Gifford Pinchot and Milton Shapp?

What is the scientific method of dating tree rings called?

Which physical force is the only one that is always attractive, never repulsive?

Who was the Greek equivalent of the Roman goddess Juventas?